Stock Based Compensation (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period options granted to date vest ratably	5 years
Period options granted expires after date of grant	10 years
Options outstanding [Roll Forward]
Outstanding at beginning of period (in shares)	110,586	124,123
Granted (in shares)	0	14,491
Exercised (in shares)	0	0
Outstanding at end of period (in shares)	110,586	138,614
Exercisable at end of period (in shares)	73,519	83,337
Weighted average exercise price [Roll forward]
Outstanding at beginning of period (in dollars per share)	$ 12.42	$ 12.54
Granted (in dollars per shares)	$ 0	$ 12.60
Exercised (in dollars per share)	$ 0	$ 0
Outstanding at end of period (in dollars per share)	$ 12.42	$ 12.55
Exercisable at end of period (in dollars per share)	$ 12.82	$ 13.25
Aggregate intrinsic value for option outstanding	$ 499,000	$ 216,000
Aggregate intrinsic value of options exercisable	312,000	119,000
Total expense related to options included in salaries and wages	$ 9,000	$ 9,000
Ownership Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)	200,000