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STOCK OPTIONS (Details 2) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Fair value assumptions |  |  |  |
Share-based compensation expense | $ 0 | $ 0 | $ 52,775 |
Total intrinsic value of options exercised | 856,269 | $ 1,157,615 | $ 1,210,135 |
Aggregate intrinsic value of options outstanding and exercisable | 4,722,854 |  |  |
Unrecognized compensation cost related to non-vested stock options | $ 0 |  |  |
Employees | Non-qualified stock option |  |  |  |
Stock Options Outstanding |  |  |  |
Exercise Prices (in dollars per share) | $ 0.94 | $ 0.95 | $ 0.95 | $ 0.95
Fair value assumptions |  |  |  |
Expected volatility rate (as a percent) | 67.53% |  |  |
Risk free interest rate (as a percent) | 3.35% |  |  |
Expected life | 8 years 7 months 10 days |  |  |
Employees | Non-qualified stock option | Exercise Price Dollars 1.30 |  |  |  |
Stock Options Outstanding |  |  |  |
Exercise Prices (in dollars per share) | $ 1.30 |  |  |
Shares Outstanding | 495,366 |  |  |
Weighted Average Remaining Contractual Life | 2 years 10 months 17 days |  |  |
Shares Exercisable | 495,366 |  |  |
Employees | Non-qualified stock option | Exercise Price Dollars 1.46 |  |  |  |
Stock Options Outstanding |  |  |  |
Exercise Prices (in dollars per share) | $ 1.46 |  |  |
Shares Outstanding | 50,000 |  |  |
Weighted Average Remaining Contractual Life | 7 years 4 months 13 days |  |  |
Shares Exercisable | 50,000 |  |  |
Employees | Non-qualified stock option | Exercise Price Dollars 0.81 |  |  |  |
Stock Options Outstanding |  |  |  |
Exercise Prices (in dollars per share) | $ 0.81 |  |  |
Shares Outstanding | 1,579,703 |  |  |
Weighted Average Remaining Contractual Life | 3 years 6 months 15 days |  |  |
Shares Exercisable | 1,579,703 |  |  |
Non Employees | Non-qualified stock option |  |  |  |
Stock Options Outstanding |  |  |  |
Exercise Prices (in dollars per share) | $ 0.81 | $ 0.81 | $ 0.81 | $ 0.81
Non Employees | Non-qualified stock option | Exercise Price Dollars 0.81 |  |  |  |
Stock Options Outstanding |  |  |  |
Exercise Prices (in dollars per share) | $ 0.81 |  |  |
Shares Outstanding | 57,500 |  |  |
Weighted Average Remaining Contractual Life | 3 years 6 months 15 days |  |  |
Shares Exercisable | 57,500 |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + 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)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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