Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Tables)

v2.4.0.6
Basis of Presentation (Tables)
6 Months Ended
Sep. 30, 2012
Basis of Presentation [Abstract]  
Changes in the fair value of warrants
The Company's financial instruments consist of money market funds.  At September 30, 2012, all of the Company's current assets in financial instruments investments were classified as cash equivalents in the condensed consolidated balance sheet. The investment portfolio at September 30, 2011 was comprised primarily of money market funds.   The restricted cash balance has since been released.  The carrying amounts of the Company's cash equivalents are valued using Level 1 inputs.  The Company also has warrant liabilities which are valued using Level 3 inputs.

 
Six Months Ended
 
 
Sept 30,
 
 
2012
 
 
2011
 
Balance at the beginning of the period
 
$
19
 
 
$
26
 
Change in fair value recorded in earnings
 
 
(3
)
 
 
(14
)
Balance at the end of the period
 
$
16
 
 
$
12
 

Valuation assumptions to estimate the fair value of options
The Company utilized the following valuation assumptions to estimate the fair value of options that would have been granted for the three and six month periods s ended September 30, 2012 and 2011, respectively.  The valuation assumptions are included for comparison only.

STOCK OPTIONS:
 
2012
 
 
2011
 
Expected life (years)
 
 
6.0
 
 
 
6.0
 
Volatility
 
 
157.5
%
 
 
151.3
%
Risk-free interest rate
 
 
0.62
%
 
 
0.96
%
Dividend yield
 
 
0
%
 
 
0
%

Valuation assumptions to estimate the fair value of ESPP
ESPP awards are valued using the Black-Scholes pricing model with expected volatility calculated using a six-month historical volatility.   No ESPP awards were made in the three and six month periods ended September 30, 2012.  The valuation assumptions are included for comparison only.

ESPP:
 
2012
 
 
2011
 
Expected life (years)
 
 
0.5
 
 
 
0.5
 
Volatility
 
 
94.7
%
 
 
141.1
%
Risk-free interest rate
 
 
0.10
%
 
 
0.02
%
Dividend yield
 
 
0
%
 
 
0
%

Stock option and warrant activity
A summary of the stock option and warrant activity during the six months ended September 30, 2012 is as follows:

 
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
 
Weighted
 
 
Average
 
 
 
 
 
 
 
 
Average
 
 
Remaining
 
 
Aggregate
 
 
 
 
 
Exercise
 
 
Contractual
 
 
Intrinsic
 
 
Shares
 
 
Price
 
 
Term (in Years)
 
 
Value
 
Beginning outstanding
 
 
127,833
 
 
$
19.24
 
 
 
 
 
 
 
Granted
 
 
136,500
 
 
$
3.92
 
 
 
 
 
 
 
Forfeited
 
 
(36,379
)
 
 
4.02
 
 
 
 
 
 
 
Expired
 
 
(500
)
 
$
-
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ending outstanding
 
 
227,454
 
 
$
12.46
 
 
 
6.90
 
 
$
-
 
Ending vested and expected to vest
 
 
227,385
 
 
$
12.44
 
 
 
6.91
 
 
$
-
 
Ending exercisable
 
 
138,813
 
 
$
17.78
 
 
 
5.12
 
 
$
-
 
 
Stock options and warrants outstanding
The following table summarizes information with respect to stock options and warrants outstanding as of September 30, 2012:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
 
Average
 
 
 
 
 
 
 
Number
 
 
Average
 
 
 
 
 
Number
 
 
Exercise
 
 
 
 
 
 
 
Outstanding
 
 
Remaining
 
 
Weighted
 
 
Exercisable
 
 
Price
 
 
 
 
 
 
 
As of
 
 
Contractual
 
 
Average
 
 
As of
 
 
As of
 
Range of
 
 
Sept 30,
 
 
Term
 
 
Exercise
 
 
Sept 30,
 
 
Sept 30,
 
Exercise Prices
 
 
2012
 
 
(in years)
 
 
Price
 
 
2012
 
 
2012
 
$
2.90
 
 
$
6.00
 
 
 
108,830
 
 
 
9.68
 
 
$
3.94
 
 
 
22,079
 
 
$
4.07
 
 
6.25
 
 
 
11.70
 
 
 
54,056
 
 
 
5.19
 
 
 
11.53
 
 
 
52,235
 
 
 
11.53
 
 
17.80
 
 
 
28.10
 
 
 
49,648
 
 
 
3.98
 
 
 
21.73
 
 
 
49,623
 
 
 
21.73
 
 
34.20
 
 
 
61.80
 
 
 
14,006
 
 
 
2.67
 
 
 
43.95
 
 
 
13,998
 
 
 
43.95
 
 
61.94
 
 
 
151.94
 
 
 
854
 
 
 
1.92
 
 
 
89.52
 
 
 
832
 
 
 
89.52
 
 
152.21
 
 
 
285.00
 
 
 
58
 
 
 
0.94
 
 
 
174.00
 
 
 
46
 
 
 
174.00
 
 
286.72
 
 
 
300.27
 
 
 
2
 
 
 
0.00
 
 
 
-
 
 
 
-
 
 
 
-
 
$
2.90
 
 
$
300.27
 
 
 
227,454
 
 
 
6.90
 
 
$
12.44
 
 
 
138,813
 
 
$
17.78
 
 
Unvested RSU activity
The following table summarizes the Company's unvested RSU activity for the six months ended September 30, 2012:

 
 
Number
 
 
Weighted Average
 
 
 
of
 
 
Grant Date
 
 
 
Shares
 
 
Fair Value
 
Balance March 31, 2012
 
 
236,541
 
 
$
2.37
 
Granted
 
 
278,417
 
 
$
3.86
 
Forfeited
 
 
(64,285
)
 
$
2.07
 
Vested
 
 
(61,189
)
 
$
2.63
 
Balance, Sept. 30, 2012
 
 
389,484
 
 
$
3.29