STOCK-BASED COMPENSATION (Schedule of Share-based Compensation, Stock Options, Activity) (Details) (USD $)	6 Months Ended	12 Months Ended
Jun. 30, 2013	Dec. 31, 2012
STOCK-BASED COMPENSATION [Abstract]
Shares Outstanding , Beginning balance	236,059	264,156
Shares Granted at fair value	0	0
Shares Exercised	(12,863)	(24,780)
Shares Expired		0
Shares Forfeited	(2)	(3,317)
Shares Outstanding, Ending balance	223,194	236,059
Shares, Exercisable	223,194	236,059
Weighted Average Exercise Price Outstanding, Beginning balance	$ 18.49	$ 17.90
Weighted Average Exercise Price Granted at fair value	$ 0.00	$ 0.00
Weighted Average Exercise Price Exercised	$ 13.08	$ 12.25
Weighted Average Exercise Price Expired	$ 0.00	$ 0.00
Weighted Average Exercise Price Forfeited	$ 13.05	$ 18.25
Weighted Average Exercise Price Outstanding, Ending balance	$ 18.80	$ 18.49
Weighted Average Exercise Price Exercisable	$ 18.80	$ 18.49
Aggregate Intrinsic Value Outstanding, Beginning balance	$ 164,304	$ 175,911
Aggregate Intrinsic Value Exercised	64,517	88,607
Aggregate Intrinsic Value Outstanding, Ending balance	415,264	164,304
Aggregate Intrinsic Value Exercisable	$ 415,264	$ 164,304
Weighted-Average Contractual Life Remaining In Years Outstanding (in years)	1 year	1 year
Weighted-Average Contractual Life Remaining In Years Exercisable (in years)	1 year	1 year

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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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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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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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Net 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 remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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Number of share options (or share units) exercised during the current period.

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