EQUITY COMPENSATION PLANS AND SHARE-BASED COMPENSATION (Details) (USD $)	3 Months Ended			1 Months Ended		3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2013	Nov. 30, 2012 2005 Equity Incentive Plan [Member]	Jun. 30, 2013 2005 Equity Incentive Plan [Member]	Jun. 30, 2013 Cost of Revenues [Member]	Jun. 30, 2012 Cost of Revenues [Member]	Jun. 30, 2013 Research and Development [Member]	Jun. 30, 2012 Research and Development [Member]	Jun. 30, 2013 Sales and Marketing [Member]	Jun. 30, 2012 Sales and Marketing [Member]	Jun. 30, 2013 General and Administrative [Member]	Jun. 30, 2012 General and Administrative [Member]
Equity Compensation Plan and Allocation of Share-based Compensation [Line Items]
Increase in aggregate number of shares reserved for issuance (in shares)				900,000
Amendment to the 2005 equity incentive plan (in shares)				500,000
Maximum shares authorized for issuance (in shares)					6,786,000
Shares available for future issuance (in shares)					977,000
Share-based compensation expense before income taxes	$ 2,249,000	$ 1,802,000				$ 254,000	$ 223,000	$ 367,000	$ 300,000	$ 706,000	$ 688,000	$ 922,000	$ 591,000
Income tax benefit	(768,000)	(644,000)
Total share-based compensation expense after income taxes	1,481,000	1,158,000
Net impact of share-based compensation on [Abstract]
Basic net income per share (in dollars per share)	$ 0.07	$ 0.05
Diluted net income per share (in dollars per share)	$ 0.07	$ 0.05
Capitalized share-based compensation costs	201,000		151,000
Excess tax benefits classified as financing cash inflow	$ 1,397,000	$ 717,000