Note F - Income Taxes - Net Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Deferred tax assets:
Allowance for doubtful accounts	$ 3	$ 28
Accrued vacation expense	106	101
Tax credit carry forward	88	51
Allowance for inventories	74	234
Stock-based compensation	130	157
Pension liability	322	238
Other, net	210	106
Deferred rent	143	13
Accumulated depreciation and amortization	897	911
Net operating loss carry forward	439	458
Total gross deferred tax assets	2,412	2,297
Deferred tax liabilities:
Prepaid expenses	$ (189)	(157)
Other		(10)
Deferred tax liabilities	$ (189)	(167)
Valuation allowance	(193)	(193)
Net deferred tax assets	$ 2,030	$ 1,937