LEASE AGREEMENTS (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2008	Mar. 31, 2007
LEASE AGREEMENTS
Operating lease, rent expense	$ 787,000	$ 730,000	$ 670,000
Letter of credit issued as security for lease	300,000
Amount capitalized					2,029,000
Landlord construction allowances recorded as additional lease financing liability				367,000
Operating Leases
2014	647,000
2015	303,000
2016	225,000
Total payments	1,175,000
Capital Leases
2014	1,542,000
2015	1,542,000
2016	1,413,000
Total payments	4,497,000
Imputed interest	(94,000)
Lease financing liability	4,403,000
Less: Current portion of lease financing liability	1,489,000	1,351,000
Lease financing liability, net of current portion	$ 2,914,000	$ 4,403,000