STOCK-BASED COMPENSATION (Details) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 29, 2012 item	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Stock-based compensation
Total stock-based compensation expense		$ 276,000	$ 296,000	$ 500,000	$ 629,000
Net stock-based compensation expense		276,000	296,000	500,000	629,000
Total unrecognized compensation cost related to non-vested share-based compensation arrangements		1,500,000		1,500,000
Period for recognition of total unrecognized compensation cost				2 years 3 months 29 days
Additional disclosure of the Stock Purchase Plan
Term limit of the plan to be eliminated according to the amendment	10 years
Minimum number of hours per week for which an employee must work to be able to participate in the Stock Purchase Plan, before amendment	10
Minimum number of hours per week for which an employee must work to be able to participate in the Stock Purchase Plan, after amendment	20
Number of shares reserved for issuance and available for purchase under the Stock Purchase Plan		1,000,000		1,000,000
Cost of revenue
Stock-based compensation
Total stock-based compensation expense		21,000	39,000	45,000	76,000
Selling and marketing
Stock-based compensation
Total stock-based compensation expense		60,000	64,000	92,000	179,000
Research and development
Stock-based compensation
Total stock-based compensation expense		61,000	105,000	114,000	201,000
General and administrative
Stock-based compensation
Total stock-based compensation expense		$ 134,000	$ 88,000	$ 249,000	$ 173,000