Reserves - Schedule of Valuation and Qualifying Accounts (Details) - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Allowance for Doubtful Accounts [Member]
Balance at Beginning of Period	$ 51,179	$ 174,131	$ 172,465
Charged to Costs and Expenses	30,858		43,243
Reduction to Allowance for Write off		(124,621)	(40,291)
Credited to Costs and Expenses	50,546	1,669	(1,286)
Balance at End of Period	132,583	51,179	174,131
Inventory Reserve [Member]
Balance at Beginning of Period	760,000	421,000	638,000
Charged to Costs and Expenses	310,000	376,560	250,000
Reduction to Allowance for Write off	(370,000)	(37,560)	(467,000)
Credited to Costs and Expenses
Balance at End of Period	700,000	760,000	421,000
Deferred Tax Valuation Allowance [Member]
Balance at Beginning of Period		708,385	799,419
Charged to Costs and Expenses
Reduction to Allowance for Write off		(708,385)	(91,034)
Credited to Costs and Expenses
Balance at End of Period			$ 708,385