Stock Repurchase Program (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2009
Payments for Repurchase of Common Stock		$ 1,000,000
Subsidiary or Equity Method Investee, Price-Per-Share		$ 5
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	81,482
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 50,000
Preferred Stock, Redemption Price Per Share	$ 0.61