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13. STOCK-BASED COMPENSATION (Details) - 6 months ended Jun. 30, 2015 - $ / shares | Total
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of Option and Warrants Outstanding, Beginning balance | 2,744,000
Number of Option and Warrants Granted and Vested | 600,000
Number of Option and Warrants exercised in period | (182,500)
Number of Option and Warrants Expired | (817,500)
Number of Option and Warrants Outstanding, Ending Balance | 2,344,000
Weighted- Average Exercise price of Option and Warrants, Beginning balance | $ 2.38
Weighted- Average Exercise price of Option and Warrants, Granted and vested during the period | 1.46
Weighted- Average Exercise price of Option and Warrants, Exercised during the period | 1.12
Weighted- Average Exercise price of Option and Warrants, Expired | 4.86
Weighted- Average Exercise price of Option and Warrants, Ending Balance | $ 1.38
Minimum [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Price per Common Share, Beginning Balance | 0.95
Range of Exercise Price per Common Share, Granted and Vested | 1.43
Range of Exercise Price per Common Share, Exercised | 0.95
Range of Exercise Price per Common Share, Expired | 2.06
Range of Exercise Price per Common Share, Ending Balance | 0.95
Maximum [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Price per Common Share, Beginning Balance | 12.60
Range of Exercise Price per Common Share, Granted and Vested | 2.55
Range of Exercise Price per Common Share, Exercised | 1.66
Range of Exercise Price per Common Share, Expired | 4.97
Range of Exercise Price per Common Share, Ending Balance | 12.60

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