Stock Based Compensation (Details 2) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stock-Based Compensation
Stock-based compensation expense	$ 86,000	$ 96,000	$ 185,000	$ 164,000
Stock options
Stock-Based Compensation
Unrecognized compensation expense related to unvested stock options	367,000		367,000
Weighted average period over which compensation expense is expected to be recognized			2 years 4 months 24 days
Restricted Stock Units (RSUs)
Stock-Based Compensation
Unrecognized compensation expense related to unvested RSUs	159,000		159,000
Weighted average period over which compensation expense is expected to be recognized			2 years 3 months 18 days
Cost of revenues
Stock-Based Compensation
Stock-based compensation expense	5,000	12,000	9,000	21,000
Selling, general and administrative
Stock-Based Compensation
Stock-based compensation expense	69,000	78,000	155,000	137,000
Research and development
Stock-Based Compensation
Stock-based compensation expense	$ 12,000	$ 6,000	$ 21,000	$ 6,000