Share Repurchase Plan (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Mar. 21, 2011
Share Repurchase Plan [Abstract]
Date on which dividends payable was declared by Board of Directors			Mar. 21, 2011
Authorized amount under share repurchase plan by Board of Directors					$ 3,000,000
Stock repurchased during period (in shares)	0	150,881	162,387	150,881
Stock repurchased during period	$ 0	$ 336,000	$ 303,000	$ 336,000