Shareholders' Equity (Details) (USD $)	3 Months Ended		6 Months Ended				6 Months Ended				6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Common stock	Dec. 31, 2011 Common stock	Jun. 30, 2012 Capital in excess of par value	Jun. 30, 2012 Retained earnings	Jun. 30, 2012 ESOP	Dec. 31, 2011 ESOP	Jun. 30, 2012 Treasury stock	Jun. 30, 2012 Accumulated Other Comprehensive Loss	Dec. 31, 2011 Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance			$ 23,244,000		$ 523,000	$ 523,000	$ 13,774,000	$ 12,490,000	$ (1,266,000)	$ (1,266,000)	$ (2,210,000)	$ (67,000)	$ (67,000)
Balance (shares)			2,074,257		2,614,506	2,614,506
Comprehensive income:
Net income	280,000	716,000	349,000	1,134,000				349,000
Purchase of treasury shares			(22,000)								(22,000)
Exercise of stock options, net of tax benefit			384,000				152,000	(323,000)			555,000
Balance	$ 23,597,000		$ 23,597,000		$ 523,000	$ 523,000	$ 13,926,000	$ 12,158,000	$ (1,266,000)	$ (1,266,000)	$ (1,677,000)	$ (67,000)	$ (67,000)
Balance (shares)	2,148,992		2,148,992		2,614,506	2,614,506