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Note 17 - Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Share-based Compensation, Activity [Table Text Block] |
|  | December 31, 2018 |  |  | December 31, 201 7 |
|  |  |  |  |  | Weighted Avg. |  |  |  |  |  |  | Weighted Avg. |
|  | Shares |  |  | Exercise Price |  |  | Shares |  |  | Exercise Price |
Exercisable, beginning of period |  |  | 103,463 |  |  | $ | 5.38 |  |  |  | 83,275 |  |  | $ | 5.20 |
Vested |  |  | 66,801 |  |  |  | 3.67 |  |  |  | 37,138 |  |  |  | 5.70 |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Cancelled/Expired |  |  | (5,000 | ) |  |  | 5.76 |  |  |  | (16,950 | ) |  |  | 5.17 |
Exercisable at the end of period |  |  | 165,264 |  |  | $ | 4.05 |  |  |  | 103,463 |  |  | $ | 5.38 |
|  | December 31, 2018 |  |  | December 31, 2017 |
|  |  |  |  |  | Weighted Avg. |  |  |  |  |  |  | Weighted Avg. |
|  | Shares |  |  | Exercise Price |  |  | Shares |  |  | Exercise Price |
Outstanding, beginning of period |  |  | 476,144 |  |  | $ | 3.97 |  |  |  | 143,094 |  |  | $ | 5.22 |
Granted |  |  | - |  |  |  | - |  |  |  | 350,000 |  |  |  | 3.52 |
Exercised |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Cancelled/Expired |  |  | (5,000 | ) |  |  | 5.76 |  |  |  | (16,950 | ) |  |  | 5.17 |
Outstanding at the end of period |  |  | 471,144 |  |  | $ | 3.95 |  |  |  | 476,144 |  |  | $ | 3.97 |

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