| Note 7 - Legal Proceeding (Details) (USD $) | 1 Months Ended | 
|---|---|
| Jun. 30, 2013 | |
| Disclosure Text Block Supplement [Abstract] | |
| Loss Contingency, Damages Sought, Value | $ 480,000 | 
| Loss Contingency Number of Warrants to Purchase Shares | 460,338 | 
| X | ||||||||||
| 
- Definition No authoritative reference available. No definition available. 
 | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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