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STOCKHOLDERS' EQUITY (Tables) | 12 Months Ended
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Dec. 31, 2018
Stockholders' Equity Attributable to Parent [Abstract] |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | As of December 31, 2018 and 2017, the Company has outstanding options to purchase 997,989 and 1,003,836 shares of common stock, respectively.
|  |  |  |  |  |  |  | Weighted |  |  |  |  |  | Intrinsic |
|  |  |  |  | Weighted |  |  | Average |  |  |  |  |  | Value |
|  | Number of |  |  | Average |  |  | Remaining |  |  |  |  |  | of |
|  | Options |  |  | Exercise Price |  |  | Term |  |  | Exercisable |  |  | Options |
Outstanding at December 31, 2016 |  |  | 1,029,262 |  |  | $ | 5.00 |  |  |  | 3.34 |  |  |  | 603,655 |  |  | $ | 1,161,244 |
Granted |  |  | 58,000 |  |  |  | 4.00 |  |  |  | 5.00 |  |  |  |  |  |  |  | - |
Forfeited/Expired |  |  | (83,426 | ) |  |  | 8.50 |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2017 |  |  | 1,003,836 |  |  | $ | 4.69 |  |  |  | 2.64 |  |  |  | 891,087 |  |  | $ | 1,356,188 |
Granted |  |  | 73,440 |  |  |  | 6.32 |  |  |  | 5.00 |  |  |  |  |  |  |  | - |
Exercised |  |  | (32,173 | ) |  |  | 2.15 |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited/Expired |  |  | (47,114 | ) |  |  | 9.31 |  |  |  |  |  |  |  |  |  |  |  | - |
Outstanding at December 31, 2018 |  |  | 997,989 |  |  | $ | 4.67 |  |  |  | 2.14 |  |  |  | 925,545 |  |  | $ | 4,705,220 |
Schedule of Other Share-based Compensation, Activity [Table Text Block] | Below is a table summarizing the Company’s outstanding warrants activity for the two years ended December 31, 2018. The Company had outstanding warrants to purchase 1,781,715 and 1,919,906 shares of the Company’s common stock as of December 31, 2018 and 2017, respectively:
|  |  |  |  |  |  |  | Weighted |  |  | Intrinsic |
|  |  |  |  | Weighted |  |  | Average |  |  | Value |
|  | Number of |  |  | Average |  |  | Remaining |  |  | of |
|  | Warrants |  |  | Exercise Price |  |  | Term |  |  | Warrants |
Outstanding at December 31, 2016 |  |  | 2,537,335 |  |  | $ | 3.75 |  |  |  | 3.55 |  |  | $ | 3,662,610 |
Granted |  |  | 366,600 |  |  |  | 2.50 |  |  |  | 4.89 |  |  |  | - |
Exercised |  |  | (974,133 | ) |  |  | 0.75 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (9,896 | ) |  |  | 12.25 |  |  |  |  |  |  |  | - |
Outstanding at December 31, 2017 |  |  | 1,919,906 |  |  | $ | 4.84 |  |  |  | 2.61 |  |  | $ | 1,656,083 |
Granted |  |  | 303,234 |  |  |  | 5.14 |  |  |  | 2.64 |  |  |  | — |
Exercised |  |  | (137,525 | ) |  |  | 5.87 |  |  |  |  |  |  |  |  |
Forfeited/Expired |  |  | (303,900 | ) |  |  | 8.43 |  |  |  |  |  |  |  | — |
Outstanding at December 31, 2018 |  |  | 1,781,715 |  |  | $ | 4.20 |  |  |  | 2.23 |  |  | $ | 8,930,058 |
Nonvested Restricted Stock Shares Activity [Table Text Block] | The following table summarizes the restricted stock activity for the two years ended December 31, 2018:
Restricted shares issued as of January 1, 2017 |  |  | 50,105 |
Granted |  |  | 106,235 |
Total Restricted Shares Issued at December 31, 2017 |  |  | 156,340 |
Granted |  |  | 92,174 |
Forfeited/Cancelled |  |  | (26,000 | )
Total Restricted Shares Issued at December 31, 2018 |  |  | 222,514 |
Vested at December 31, 2018 |  |  | 188,008 |
Unvested restricted shares as of December 31, 2018 |  |  | 34,506 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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