| Note 4 - Property and Equipment (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | |
| Depreciation | $ 257,197 | $ 52,823 | $ 532,682 | $ 141,707 | 
| X | ||||||||||
| 
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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