Schedule II - Valuation and Qualifying Accounts and Reserves (Details) (USD $)	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 182,000	[1]	$ 319,000	[1]	$ 283,000	[1]
Additions Charged to Expenses	(24,000)	[1]	182,000	[1]	107,000	[1]
Deductions from Reserves	89,000	[1],[2]	(319,000)	[1],[2]	(71,000)	[1],[2]
Balance at End of Period	$ 247,000	[1]	$ 182,000	[1]	$ 319,000	[1]

[1] The reserve for doubtful accounts and sales allowance is presented on a consolidated basis.

[2] The deductions related to allowances for doubtful accounts represent net balance of accounts receivable which were written off and recovered.