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STOCK OPTIONS (Details 2) | 12 Months Ended
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Dec. 31, 2015 $ / shares shares
Number and weighted average grant date fair values of options non-vested |
Number of Options Non-vested at beginning of period | 1,487,435
Number of Options Non-vested, Granted 2015 | 830,922
Number of Options Non-vested, Vested in 2015 | (495,196)
Number of Options Non-vested, Forfeited in 2015 | (115,750)
Number of Options Non-vested at end of period | 1,707,411
Weighted average grant date fair value, Non-vested Options at beginning of period | $ / shares | $ 3.11
Weighted average grant date fair value, Non-vested Options Granted in 2015 | $ / shares | 2.21
Weighted average grant date fair value, Non-vested Options Vested in 2015 | $ / shares | 3.06
Weighted average grant date fair value, Non-vested Options Forfeited in 2015 | $ / shares | $ 3.83

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- Definition The weighted average fair value as of grant date pertaining to a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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