Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details)

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Employee Benefit Plans (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Jun. 26, 2013
Employee Benefit Plans [Abstract]      
Reverse stock split 1-for-5    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Purchase price of shares to fair market value (in hundredths) 85.00%    
Number of shares eligible for grant on second anniversary (in shares) 16,667    
Award vesting rights 1/12th of the total number of shares will vest on the first day of each calendar month following the date of Option grant    
Employee Qualified Stock Purchase Plan [Abstract]      
Purchase price of shares to fair market value (in hundredths) 85.00%    
Number of shares authorized (in shares) 16,667    
Common stock issued stock purchase plans (in shares) 0    
Number of shares available for future purchase (in shares)     741
Savings and Investment Plan [Abstract]      
Employer matching contribution (in hundredths) 4.00%    
Maximum annual employee contribution (in hundredth) 15.00%    
Employer contribution amount $ 24 $ 12  
1998 Equity Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized (in shares) 333,333    
Term of awards 10 years    
2007 Equity Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized (in shares) 200,000    
Number of shares available for grant (in shares) 7,871    
Term of awards 10 years    
Purchase price of shares to fair market value (in hundredths) 100.00%    
Number of shares eligible for grant on first anniversary (in shares) 833    
Directors Option Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized (in shares) 66,667    
Number of shares available for grant (in shares) 1,667