Share Repurchase Plan (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Stock Repurchase Program, Authorized Amount	$ 10,000,000
Treasury stock purchased, shares	508,080	471,554
Stock Repurchased During Period, Value	$ 3,923,000	$ 2,552,000
Treasury Stock Acquired, Average Cost Per Share	$ 7.72	$ 5.41