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           7. Stock-Based Compensation (Details Narrative) (USD $) 
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        3 Months Ended | |
|---|---|---|
| 
           Jun. 30, 2012 
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           Apr. 02, 2012 
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      |
| Stock-Based Compensation Details Narrative | ||
| Estimated forfeiture rate, minimum | 2.53% | |
| Estimated forfeiture rate, maximum | 2.95% | |
| Unrecognized compensation costs of options | $ 1,546,000 | |
| Weighted-average amortization period of options | 1 year 8 months 26 days | |
| Fair value of the Company's common stock | $ 0.74 | |
| Total shares authorized for issuance in the 2006 Plan | 4,345,166 | |
| Increase in aggregate number of shares authorized under 2006 plan | 1,450,395 | 
| X | ||||||||||
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- Definition 
          Estimated Forfeiture Rate Maximum. No definition available. 
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- Definition 
          Estimated Forfeiture Rate Minimum. No definition available. 
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- Definition 
          Fair Value Of Companys Common Stock. No definition available. 
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- Definition 
          Increse In Aggregate Number Of Shares Authorized. No definition available. 
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- Details 
          
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- Definition 
          No authoritative reference available. No definition available. 
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- Definition 
          Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest. No definition available. 
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- Definition 
          The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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