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Stock Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
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12 Months Ended |
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Mar. 31, 2013
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Mar. 31, 2012
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| Stock Based Compensation [Abstract] |
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| Reverse stock split |
1-for-5
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| Weighted Average Grant Date Fair Value [Roll Forward] |
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|
| Stock-based compensation expense |
$ 695
|
$ 175
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Exercise Price $2.90 - $6.00 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 2.90
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 6.00
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|
| Number of outstanding options at end of period (in shares) |
164,329
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|
| Weighted Average Remaining Contractual Term |
9 years 3 months 22 days
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| Weighted Average Exercise Price (in dollars per share) |
$ 3.81
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|
| Number of Exercisable at end of period (in shares) |
51,244
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| Weighted Average Exercise Price (in dollars per share) |
$ 3.73
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Exercise Price $6.25 - $11.70 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 6.25
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 11.70
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| Number of outstanding options at end of period (in shares) |
45,358
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|
| Weighted Average Remaining Contractual Term |
5 years 7 months 20 days
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| Weighted Average Exercise Price (in dollars per share) |
$ 11.50
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| Number of Exercisable at end of period (in shares) |
45,358
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| Weighted Average Exercise Price (in dollars per share) |
$ 11.50
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Exercise Price $17.80 - $28.10 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 17.80
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 28.10
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| Number of outstanding options at end of period (in shares) |
39,269
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| Weighted Average Remaining Contractual Term |
4 years 5 months 19 days
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| Weighted Average Exercise Price (in dollars per share) |
$ 21.63
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| Number of Exercisable at end of period (in shares) |
39,244
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| Weighted Average Exercise Price (in dollars per share) |
$ 21.63
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Exercise Price $34.20 - $61.80 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 34.20
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 61.80
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| Number of outstanding options at end of period (in shares) |
14,006
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| Weighted Average Remaining Contractual Term |
2 years 2 months 5 days
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| Weighted Average Exercise Price (in dollars per share) |
$ 43.95
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| Number of Exercisable at end of period (in shares) |
13,998
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| Weighted Average Exercise Price (in dollars per share) |
$ 43.95
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Exercise Price $61.94 - $$151.94 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 61.94
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 151.94
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| Number of outstanding options at end of period (in shares) |
854
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| Weighted Average Remaining Contractual Term |
1 year 5 months 8 days
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| Weighted Average Exercise Price (in dollars per share) |
$ 89.52
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| Number of Exercisable at end of period (in shares) |
832
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| Weighted Average Exercise Price (in dollars per share) |
$ 89.52
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Exercise Price $152.21 - $285.00 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 152.21
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 285.00
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| Number of outstanding options at end of period (in shares) |
58
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| Weighted Average Remaining Contractual Term |
6 months 14 days
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| Weighted Average Exercise Price (in dollars per share) |
$ 174.00
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| Number of Exercisable at end of period (in shares) |
46
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| Weighted Average Exercise Price (in dollars per share) |
$ 174.00
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Exercise Price $286.72 - $300.27 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 286.72
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 300.27
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| Number of outstanding options at end of period (in shares) |
2
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| Weighted Average Remaining Contractual Term |
0 years
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| Weighted Average Exercise Price (in dollars per share) |
$ 0
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| Number of Exercisable at end of period (in shares) |
0
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| Weighted Average Exercise Price (in dollars per share) |
$ 0
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Exercise Price $2.90 - $300.7 [Member]
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| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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| Exercise Price Range, Lower Range Limit (in dollars per share) |
$ 2.90
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| Exercise Price Range, Upper Range Limit (in dollars per share) |
$ 300.27
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| Number of outstanding options at end of period (in shares) |
263,876
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| Weighted Average Remaining Contractual Term |
7 years 6 months 18 days
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| Weighted Average Exercise Price (in dollars per share) |
$ 10.23
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| Number of Exercisable at end of period (in shares) |
150,722
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| Weighted Average Exercise Price (in dollars per share) |
$ 14.99
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Stock Options [Member]
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| Options and Warrants Additional Disclosures [Abstract] |
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| Options, Weighted Average Grant Date Fair Value |
$ 2.82
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$ 3.43
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| Fair Value Assumptions and Methodology [Abstract] |
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| Expected Term |
6 years
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6 years
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| Volatility (in hundredths) |
156.80%
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154.90%
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| Risk-free interest rate (in hundredths) |
0.65%
|
1.04%
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| Dividend yield (in hundredths) |
0.00%
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0.00%
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| Weighted Average Grant Date Fair Value [Roll Forward] |
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| Total Compensation Cost Not yet Recognized |
|
261
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| Compensation cost, Period for recognition |
|
3 years 1 month 13 days
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|
Restricted Stock Units (RSUs) [Member]
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| Restricted Stock Units [Roll Forward] |
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| Balance at beginning of period (in shares) |
236,541
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| Granted ( in shares) |
318,417
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| Forfeited (in shares) |
(279,760)
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| Released (in shares) |
(27,740)
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| Vested (in shares) |
(63,554)
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| Balance at end of period (in shares) |
183,904
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236,541
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| Weighted Average Grant Date Fair Value [Roll Forward] |
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| Balance at beginning of period (in dollars per share) |
$ 2.11
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| Granted (in dollars per share) |
$ 3.84
|
$ 1.79
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| Forfeited (in dollars per share) |
$ 3.51
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| Vested (in dollars per share) |
$ 2.73
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| Balance at end of period (in dollars per share) |
$ 2.67
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$ 2.11
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| Total Compensation Cost Not yet Recognized |
380
|
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| Compensation cost, Period for recognition |
2 years 1 month 10 days
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Stock Option and Warrants [Member]
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| Options and Warrants Outstanding [Roll Forward] |
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| Outstanding, Number, Beginning Balance (in shares) |
127,833
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| Granted (in shares) |
191,999
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| Forfeited (in shares) |
(36,379)
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| Expired (in shares) |
(19,577)
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| Outstanding, Number, Ending Balance (in shares) |
263,876
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| Weighted Average Exercise Price [Roll Forward] |
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| Beginning Balance (in dollars per share) |
$ 19.24
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| Granted (in dollars per share) |
$ 3.82
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| Forfeited (in dollars per share) |
$ 4.02
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| Expired (in dollars per share) |
$ 17.68
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| Ending Balance (in dollars per share) |
$ 10.23
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| Options and Warrants Additional Disclosures [Abstract] |
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| Vested and Expected to Vest, Outstanding, Number (in shares) |
263,807
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|
| Exercisable, Number (in shares) |
150,722
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| Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price (in dollars per share) |
$ 10.22
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| Exercisable, Weighted Average Exercise Price (in dollars per share) |
$ 14.99
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| Options, Weighted Average Remaining Contractual Term |
7 years 6 months 18 days
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| Exercisable, Weighted Average Remaining Contractual Term |
7 years 6 months 22 days
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| Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term |
6 years 2 months 5 days
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| Options, Outstanding, Intrinsic Value |
0
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| Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value |
0
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| Exercisable, Intrinsic Value |
$ 0
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