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Treasury Stock	3 Months Ended
	Mar. 31, 2013
Equity [Abstract]
Treasury Stock [Text Block]	Treasury Stock The Company did not repurchase any of its stock during the three months ended March 31, 2012 and 2013.

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- Definition

The entire disclosure for an entity's treasury stock, including the average cost per share, carrying basis for each class of treasury stock, description of share repurchase program authorized by an entity's board of directors, the number of shares repurchased, the cost of the shares repurchased, the remaining maximum dollar value of shares available for repurchase under the program, the treatment of the purchase price in excess of the current market value, number of shares held for each class of treasury stock, and other information necessary to a fair presentation.

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