Note 11 - Income Taxes (Detail) - Components of Deferred Income Tax Assets and (Liabilities) (USD $)	Jun. 30, 2012	Jun. 30, 2011
Reserves against current assets	$ 358,000	$ 233,000
Accrued expenses	1,510,000	1,276,000
Depreciation	(3,719,000)	(3,534,000)
Goodwill, acquisition costs and intangible assets	1,838,000	2,597,000
Deferred compensation	955,000	893,000
State net operating loss carryover and credits	1,978,000	1,858,000
Foreign net operating loss carryover and credits	3,827,000	3,286,000
Valuation reserve	(5,009,000)	(4,200,000)
U.S. Federal net operating loss carryover and credits	620,000
Net deferred income tax asset	2,358,000	2,409,000
Other current assets	1,868,000	1,509,000
Other long-term assets	$ 490,000	$ 900,000