COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Operating Leases, Future Minimum Payments Due [Abstract]
2014	$ 4,686,000
2015	1,913,000
2016	1,334,000
2017	727,000
2018	650,000
Thereafter	1,568,000
Total minimum future rental payments	10,878,000
Total rent expense for operating leases	5,600,000	5,900,000	5,600,000
Unconditional purchase obligations	$ 182,500,000