Note 10 - Income Taxes (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2017 |
|
| Deferred Tax Assets, Valuation Allowance | $ 8,107,000 | $ 9,927,000 |
| Deferred Tax Assets, Operating Loss Carryforwards, Domestic | 20,242,000 | |
| Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 20,200,000 | |
| Deferred Tax Operating Loss Carry Forwards Expiration Year | 2030 | |
| Unrecognized Tax Benefits | $ 0 | $ 0 |
| X | ||||||||||
- Definition Deferred Tax Operating Loss Carry forwards, Expiration Year. No definition available.
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|