CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Abstract]
Net income (loss)	$ 12,727	$ 4,313	$ (430)
Change in net unrealized gains on investments available for sale	3,041	5,114	572
Comprehensive income before tax	15,768	9,427	142
Income tax expense related to items of other comprehensive income (loss)	(1,144)	(1,924)	(215)
Comprehensive income (loss)	$ 14,624	$ 7,503	$ (73)