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12. STOCK-BASED COMPENSATION (Details Narrative) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
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Share-based Compensation [Abstract] |  |
Aggregate intrinsic value of options outstanding and exercisable | $ 119,059 | $ 10,571

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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + 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=109197908&loc=d3e5070-113901 + Details
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