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STOCKHOLDERS' EQUITY (Schedule of Activity of Warrants) (Details) - $ / shares | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2019
Number of Warrants |  |
Outstanding at beginning of period | 154,429 | 160,143
Warrants expired, forfeited, cancelled or exercised | (102,800) |
Outstanding at end of period | 311,898 | 154,429
Exercisable at end of period | 162,474 | 145,857
Weighted Avg. Exercise Price |  |
Outstanding at beginning of period | $ 14.00 | $ 14.00
Warrants expired | 14.00 |
Outstanding at end of period | 5.46 | 14.00
Exercisable at end of period | $ 6.08 | $ 14.00
Remaining Contractual Life (Years) |  |
Outstanding at end of period | 4 years 8 months 12 days | 3 years 4 months 24 days
Exercisable at end of period | 4 years 8 months 12 days | 3 years 4 months 24 days
Warrant [Member] |  |
Number of Warrants |  |
Outstanding at beginning of period | 1,487,570 | 1,815,182
Warrants expired, forfeited, cancelled or exercised |  | (327,612)
Warrants issued | 67,500 |
Outstanding at end of period | 1,588,750 | 1,487,570
Exercisable at end of period | 1,521,250 | 1,487,570
Weighted Avg. Exercise Price |  |
Outstanding at beginning of period | $ 8.78 | $ 9.52
Warrants issued | 9.00 |
Outstanding at end of period | 8.79 | 8.78
Exercisable at end of period | $ 8.41 | $ 8.78
Remaining Contractual Life (Years) |  |
Outstanding at beginning of period | 2 years 9 months 18 days | 3 years 10 months 25 days
Warrants issued | 2 years 7 months 6 days |
Outstanding at end of period | 4 years 9 months 18 days | 2 years 9 months 18 days
Exercisable at end of period | 2 years 8 months 12 days | 2 years 9 months 18 days

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- Definition The number of warrants issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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