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Stock Options (Detail Textuals)					12 Months Ended
Stock Options (Detail Textuals)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2012 2000 Incentive Stock Option Plan Stock options	May 11, 2012 2000 Incentive Stock Option Plan Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of the common stock sold or issued						500,000
Options outstanding	173,888	167,983	175,485	174,220	173,888
Exercise of stock options (in shares)					87,454
Options available for future issuance					238,658

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

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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