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Note 11 - Income Taxes (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2013
Note 11 - Income Taxes (Details) [Line Items] |  |  |
Deferred Tax Assets, Capital Loss Carryforwards | $ 4,272,000 |  |
Deferred Tax Assets, Valuation Allowance | 6,161,000 | $ 6,450,000 |
Unrecognized Tax Benefits | $ 447,000 | 485,000 |
Oregon Net Operating Loss Term | 4 years |  |
Oregon Research and Development Credit Term | 2 years |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign |  | 4,465,000 |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | $ 292,000 | 333,000 |
Unrecognized Tax Benefits, Income Tax Penalties Accrued | 152,000 | 169,000 |
Reserve for Unrecognized Tax Benefits Including Penalties and Interest | 891,000 | 987,000 |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 739,000 | 819,000 |
Unrecognized Tax Benefits, Period Increase (Decrease) | 40,000 | 147,000 | $ 540,000
Domestic Tax Authority [Member] |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |
Deferred Tax Assets, Capital Loss Carryforwards | 506,000 | 556,000 |
State and Local Jurisdiction [Member] | New York State Division of Taxation and Finance [Member] |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 1,716,000 | 1,727,000 |
Deferred Tax Assets, Valuation Allowance | 1,716,000 | 1,721,000 |
Deferred State and Local Income Tax Expense (Benefit) | (5,000) | 489,000 | $ 312,000
State and Local Jurisdiction [Member] | Tennessee State Tax [Member] |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local |  | 90,000 |
State and Local Jurisdiction [Member] | Oregon State Tax [Member] |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 173,000 | 173,000 |
State and Local Jurisdiction [Member] | State Tax Code Change [Member] | New York State Division of Taxation and Finance [Member] |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |
Unrecognized Tax Benefits |  | 362,000 |
Foreign Tax Authority [Member] | Canada Revenue Agency [Member] |  |  |
Note 11 - Income Taxes (Details) [Line Items] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign | $ 4,272,000 | $ 4,465,000 |

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