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13. STOCK-BASED COMPENSATION (Details Narrative) - USD ($) | 6 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015
Stock-based Compensation Details Narrative |  |
Common stock reserved for issuance | 10,341,989 |
Common stock available for issuance | 6,980,989 |
Aggregate intrinsic value of options outstanding and exercisable | $ 1,003,555 |
Intrinsic value of options exercised | $ 14,292 | $ 236,535
Options exercised | 36,000 |

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