SUPPLEMENTAL DATA SCHEDULE II (Details) - USD ($)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Period	$ 172,465	$ 180,306	$ 168,554
Charged to Costs and Expenses	43,243	0	0
Reduction to Allowance for Write off	(40,291)	(15,807)	(8,248)
Credited to Costs and Expenses	(1,286)	7,966	20,000
Balance at End of Period	174,131	172,465	180,306
Deferred Tax Valuation Allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Period	799,419	1,619,459	3,865,695
Charged to Costs and Expenses	0	0	(626,777)
Reduction to Allowance for Write off	(91,034)	(820,040)	(1,619,459)
Credited to Costs and Expenses	0	0	0
Balance at End of Period	708,385	799,419	1,619,459
Inventory Reserve [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Period	638,000	503,000	663,000
Charged to Costs and Expenses	250,000	160,000	104,175
Reduction to Allowance for Write off	(467,000)	(25,000)	(264,175)
Credited to Costs and Expenses	0	0	0
Balance at End of Period	$ 421,000	$ 638,000	$ 503,000