Note F - Income Taxes (Details) - Net Deferred Tax Assets and Deferred Tax Liabilities (USD $)	Jun. 30, 2014	Jun. 30, 2013
Deferred tax assets:
Allowance for doubtful accounts	$ 28,000	$ 49,000
Accrued vacation expense	101,000	108,000
Tax credit carry forward	51,000	4,000
Allowance for inventories	234,000	136,000
Stock-based compensation	157,000	126,000
Pension liability	238,000	279,000
Other, net	106,000	150,000
Deferred rent	13,000	89,000
Accumulated depreciation and amortization	911,000	846,000
Net operating loss carry forward	458,000	525,000
Total gross deferred tax assets	2,297,000	2,312,000
Deferred tax liabilities:
Prepaid expenses	(157,000)	(151,000)
Other	(10,000)	(25,000)
Deferred tax liabilities	(167,000)	(176,000)
Valuation allowance	(193,000)
Net deferred tax assets	$ 1,937,000	$ 2,136,000