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13. STOCK-BASED COMPENSATION (Details) | 9 Months Ended
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Sep. 30, 2019 $ / shares shares
Share-based Payment Arrangement [Abstract] |
Number of option and warrants outstanding, beginning balance | shares | 2,518,000
Number of option and warrants granted and vested | shares | 150,000
Number of option and warrants exercised | shares | (1,897,000)
Number of option and warrants expired | shares | (65,500)
Number of option and warrants outstanding, ending balance | shares | 705,500
Weighted-average exercise price of option and warrants, beginning balance | $ / shares | $ .97
Weighted-average exercise price of option and warrants granted and vested during the period | $ / shares | .91
Weighted-average exercise price of option and warrants exercised | $ / shares | .73
Weighted-average exercise price of option and warrants expired | $ / shares | 2.31
Weighted-average exercise price of option and warrants, ending balance | $ / shares | $ 1.47
Range of exercise price per common share, beginning balance | $0.71 - $4.80
Range of exercise price per common share granted and vested | $0.91
Range of exercise price per common share exercised | $0.73
Range of exercise price per common share expired | $2.61
Range of exercise price per common share, ending balance | $0.71 - $2.10

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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + 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)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + 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 -URI http://asc.fasb.org/extlink&oid=116856206&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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock 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)(i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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