Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Taxes on unrealized holding gains on securities	$ 53	$ 10	$ 78	$ (103)
Adjustment for realized gains included in net earnings	$ 0	$ 0	$ 0	$ (434)