CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 7,168	$ 9,172	$ 9,118
Other comprehensive income (loss) :
Unrealized gains (losses) on securities arising during the period	9,788	(5,341)	691
Reclassification of realized amount	(18)	0	0
Net change in unrealized gain (loss) on securities	9,770	(5,341)	691
Change in funded status of pension plan	0	0	132
Less tax impact	3,322	(1,816)	280
Other comprehensive income (loss) :	6,448	(3,525)	543
Comprehensive income	$ 13,616	$ 5,647	$ 9,661