Defined Contribution Plans	12 Months Ended
Defined Contribution Plans	Mar. 31, 2012
Defined Contribution Plans [Abstract]
Defined Contribution Plans [Text Block]	17. Defined Contribution Plans The Company has a 401(k) plan covering all employees who are 21 years of age with at least six months of service. The plan permits eligible employees to make contributions up to certain limitations, with the Company matching 25% of each participating employee's contribution up to the first 6% of employee compensation. Employees are immediately vested in their voluntary employee contributions and vest in the Company's matching contributions ratably over five years. The Company's matching contribution to the 401(k) plan was $102,000, $92,000 and $88,000 for the fiscal years ended March 31, 2012, 2011 and 2010, respectively. The Company also offers retirement savings plan (the "Plan") to all its Canadian-based employees with at least one-year of continuous service. The Company's contribution to the Plan ranges from 3% to10% of the employees' base salary. The Company's contribution percentage is dependent on the position of the employee and the number of years of service with the Company. The Company's contribution vests two years from the date of enrollment into the Plan. The Company's contribution to the Plan since its acquisition on May 6, 2011, was $343,000 for the fiscal year ended March 31, 2012.

The entire disclosure for postemployment benefits, which may include supplemental unemployment benefits, obligations recognized for all types of benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement. Disclosure may also include discussion that an obligation for postemployment benefits is not accrued in accordance with regulation only because the amount cannot be reasonably estimated.

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