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Note 11 - Income Taxes - Components of Deferred Income Tax Assets and (Liabilities) (Details) - USD ($) | Jun. 30, 2016 | Jun. 30, 2015
--- | --- | ---
Reserves against current assets | $ 679,000 | $ 273,000
Accrued expenses | 3,690,000 | 2,881,000
Goodwill, acquisition costs and intangible assets |  | 255,000
Deferred compensation | 842,000 | 791,000
Stock-based Compensation | 1,473,000 | 1,213,000
State net operating loss carryover and credits | 1,878,000 | 1,889,000
Deferred Tax Assets, Capital Loss Carryforwards | 4,272,000 | 4,272,000
U.S. Federal net operating loss carryover and credits | 456,000 | 506,000
Deferred income tax asset before valuation reserve | 13,290,000 | 12,080,000
Valuation reserve | (6,150,000) | (6,161,000)
Deferred income tax asset | 7,140,000 | 5,919,000
Depreciation | (4,270,000) | (4,454,000)
Goodwill, acquisition costs and intangible assets | (289,000) |
Deferred income tax liability | (4,559,000) | (4,454,000)
Net deferred income tax asset | $ 2,581,000 | $ 1,465,000

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