Earnings per Common Share (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Earnings per Common Share [Abstract]
Weighted average number of common shares, basic, (in shares)	15,411,000	15,334,000	15,414,000	15,332,000
Weighted average number of common shares, diluted (in shares)	15,446,000	15,404,000	15,449,000	15,435,000
Earnings per share, basic (in dollars per share)	$ 0.18	$ 0.26	$ 0.49	$ 0.46
Earnings per share, diluted (in dollars per share)	$ 0.18	$ 0.26	$ 0.49	$ 0.45