Consolidated Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net loss	$ 4,006	$ (4,712)	$ (3,773)	$ (33,709)
Other comprehensive income (loss):
Unrealized gains arising from termination of supplemental executive retirement plans	0	371	0	371
Unrealized holdings gains (losses) arising during the period on available-for-sale securities	1,584	5,633	(19,857)	10,817
Tax effect	(829)	(2,225)	7,636	(4,245)
Unrealized holdings gains (losses) arising during the period on available-for-sale securities, net of tax	755	3,408	(12,221)	6,572
Reclassification adjustment for (gain) losses on available-for-sale securities included in net income	(50)	33	(2,773)	(1,923)
Tax effect	19	(13)	1,094	760
Reclassification adjustment for (gain) losses on available-for-sale securities included in net income, net of tax	(31)	20	(1,679)	(1,163)
Change in defined benefit plans liability	(249)	0	(757)	0
Tax effect	95	0	296	0
Change in defined benefit plans liability, net of tax	(154)	0	(461)	0
Other comprehensive income (loss), net of tax:	570	3,799	(14,361)	5,780
Comprehensive income (loss)	$ 4,576	$ (913)	$ (18,134)	$ (27,929)