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.

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Unrecognized cost of unvested options awarded to employees as compensation.

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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.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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STOCK OPTIONS (Details 2) - USD ($)	12 Months Ended
STOCK OPTIONS (Details 2) - USD ($)	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