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STOCK-BASED COMPENSATION - Stock Options (Details 1) (Stock Options, USD $)	6 Months Ended
	Jun. 30, 2012
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares, Outstanding at December 31, 2011	564,735
Shares Granted
Shares Exercised	(306,375)
Shares Forfeited	(9,827)
Shares Expired
Shares, Outstanding and exercisable at June 30, 2012	248,533
Weighted Average Exercise Price, Outstanding at December 31, 2011	$ 4.08
Weighted Average Exercise Price Granted
Weighted Average Exercise Price Exercised	$ 2.67
Weighted Average Exercise Price Forfeited	$ 2.67
Weighted Average Exercise Price Expired
Weighted Average Exercise Price, Outstanding and exercisable at June 30, 2012	$ 5.87
Weighted Average Remaining Contractual Life, Outstanding	0.6 years
Weighted Average Remaining Contractual Life, Outstanding And Exercisable	0.8 years
Aggregate Intrinsic Value, Outstanding and Exercisable	$ 52,190

X

- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible.

+ References

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Weighted average remaining contractual term for option awards outstanding.

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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