Note 11 - Income Taxes (Details) - Components of Deferred Income Tax Assets and (Liabilities) (USD $)	Jun. 30, 2013	Jun. 30, 2012
Components of Deferred Income Tax Assets and (Liabilities) [Abstract]
Reserves against current assets	$ 370,000	$ 358,000
Accrued expenses	1,686,000	1,510,000
Depreciation	(3,709,000)	(3,719,000)
Goodwill, acquisition costs and intangible assets	1,646,000	1,838,000
Deferred compensation	999,000	955,000
State net operating loss carryover and credits	1,991,000	1,978,000
Foreign net operating loss carryover and credits	4,256,000	3,827,000
Valuation reserve	(5,750,000)	(5,009,000)
U.S. Federal net operating loss carryover and credits	606,000	620,000
Net deferred income tax asset	2,095,000	2,358,000
Other current assets	2,056,000	1,868,000
Other long-term assets	$ 39,000	$ 490,000