Stockholder's Equity (Details 2) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Stock-based compensation expense
Total stock-based compensation expense	$ 1,081,000	$ 919,000	$ 1,081,000
Net stock-based compensation expense	1,081,000	919,000	1,081,000
Total unrecognized compensation cost related to non-vested share-based compensation arrangements	1,400,000
Period for recognition of total unrecognized compensation cost	2 years 2 months 12 days
Discontinued operations
Stock-based compensation expense
Total stock-based compensation expense	212,000	130,000	199,000
Cost of service revenue
Stock-based compensation expense
Total stock-based compensation expense	39,000	3,000	6,000
Selling and marketing
Stock-based compensation expense
Total stock-based compensation expense	347,000	179,000	312,000
Research and development
Stock-based compensation expense
Total stock-based compensation expense	285,000	250,000	368,000
General and administrative
Stock-based compensation expense
Total stock-based compensation expense	$ 410,000	$ 487,000	$ 395,000