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11. STOCK-BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of options activity |
Outstanding Options Under the 2006 Plan |  | Shares |  |  | Weighted Average Exercise price Per Common Share |  |  | Weighted Average Remaining Contractual Life (in years) |  |  | Aggregate Intrinsic Value |
Balance, December 31, 2014 |  |  | 2,092,509 |  |  | $ | 3.58 |  |  |  |  |  |  |  |  |
Exercised |  |  | (1,135,833 | ) |  |  | 2.69 |  |  |  |  |  |  |  |  |
Canceled, forfeited or expired |  |  | (25,009 | ) |  |  | 2.22 |  |  |  |  |  |  |  |  |
Balance, December 31, 2015 |  |  | 931,667 |  |  |  | 4.69 |  |  |  | 0.82 |  |  | $ | 2,109,751 |
Exercisable at December 31, 2015 |  |  | 918,334 |  |  |  | 4.73 |  |  |  | 0.79 |  |  |  | 2,054,551 |
Schedule of RSA activity |
|  |  |  |  | Weighted-Average |  |  |  |
|  |  |  |  | Remaining |  |  |  |
|  |  |  |  | Contractual |  |  | Weighted-Average |
|  | RSA's |  |  | Term (Years) |  |  | Fair Value |
RSA's unvested at December 31, 2014 |  |  | 942,024 |  |  |  |  |  |  | $ | 1.96 |
Changes during the period |  |  |  |  |  |  |  |  |  |  |  |
Granted |  |  | 744,423 |  |  |  |  |  |  | $ | 8.60 |
Vested |  |  | (856,052 | ) |  |  |  |  |  | $ | 4.59 |
Forfeited |  |  | (59,053 | ) |  |  |  |  |  | $ | 5.59 |
RSA's unvested at December 31, 2015 |  |  | 771,342 |  |  |  | 0.71 |  |  | $ | 5.17 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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