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Consolidated Statements of Changes in Stockholders' Equity - USD ($) | Total | Common Stock [Member] | Stock Warrants [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Retained Earnings [Member]
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2015 | $ 32,190,666 | $ 82,521 | $ 0 | $ 93,661,178 | $ (270,140) | $ (61,282,893)
Balance (in shares) at Dec. 31, 2015 |  | 82,520,696 |  |  |  |
Issuance of common stock — options exercises | 0 | $ 0 | 0 |  | 0 | 0
Issuance of common stock — options exercises (in shares) |  | 0 |  |  |  |
Issuance of common stock — restricted (In Value) | (51,863) | $ 209 | 0 | (52,072) | 0 | 0
Issuance of common stock — restricted (In Shares) |  | 209,438 |  |  |  |
Stock compensation expense — restricted | 125,623 |  |  | 125,623 |  |
Stock compensation expense — non-qualified stock options | 185,366 | $ 0 | 0 | 185,366 | 0 | 0
Foreign currency translation — gain | (39,229) |  |  |  | (39,229) |
Net loss | (4,133,912) | 0 | 0 | 0 |  | (4,133,912)
Balance at Dec. 31, 2016 | 28,276,651 | $ 82,730 | 0 | 93,920,095 | (309,369) | (65,416,805)
Balance (in shares) at Dec. 31, 2016 |  | 82,730,134 |  |  |  |
Issuance of common stock — options exercises | 17,100 | $ 30 | 0 | 17,070 | 0 | 0
Issuance of common stock — options exercises (in shares) |  | 30,000 |  |  |  |
Issuance of common stock — restricted (In Value) | (123,866) | $ 272 |  | (124,138) | 0 | 0
Issuance of common stock — restricted (In Shares) |  | 271,461 |  |  |  |
Stock compensation expense — restricted | 157,857 |  |  | 157,857 |  |
Stock compensation expense — non-qualified stock options | 229,353 | $ 0 | 0 | 229,353 | 0 | 0
Foreign currency translation — gain | 186,908 |  |  |  | 186,908 |
Net loss | (3,533,937) | 0 | 0 | 0 |  | (3,533,937)
Balance at Dec. 31, 2017 | $ 25,210,066 | $ 83,032 | $ 0 | $ 94,200,237 | $ (122,461) | $ (68,950,742)
Balance (in shares) at Dec. 31, 2017 |  | 83,031,595 |  |  |  |

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