COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended
	Mar. 31, 2014 Defendant	Mar. 31, 2013	Mar. 31, 2012	May 19, 2009 Defendant
COMMITMENTS AND CONTINGENCIES [Abstract]
Rent expense	$ 3,800,000	$ 3,500,000	$ 2,400,000
Future Minimum Lease Payments [Abstract]
Year ending March 31, 2015	4,263,000
2016	3,251,000
2017	2,496,000
2018	1,803,000
2019 and thereafter	655,000
Operating Leases, Future Minimum Payments Due	12,468,000
Increase in future minimum lease payments	5,700,000
Legal Proceedings [Abstract]
Number of defendants infringing patents				4
Number of defendants entered into agreement	3
Judgment amount	18,200,000
Daily coercive fine	$ 62,362