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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Number of shares issued during the period as a result of an employee stock purchase plan.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Stockholders' Equity (Details) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended
Stockholders' Equity (Details) (USD $)	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of purchase price to fair market value of shares	10.00%	5.00%
Share available under plan			350,000
Shares issued for Employee Stock Purchase Plan			8,153	2,401
Employer contributions to 401(k) plan			$ 120,345	$ 82,997
Number of additional shares authorized for repurchase			100,000
Shares repurchased			(3,867)
Shares repurchased, price per share			$ 9.94
Shares repurchased, value			$ (38,435)
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued for Employee Stock Purchase Plan			252,739