Quarterly Results of Operations (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summarize quarterly results of operations
Total interest income	$ 7,509	$ 7,765	$ 7,936	$ 8,413	$ 8,669	$ 8,886	$ 9,080	$ 9,602	$ 31,623	$ 36,237	$ 40,821
Total interest expense	1,705	1,780	2,023	2,224	2,318	2,420	2,644	2,992	7,732	10,374	14,434
Net interest income	5,804	5,985	5,913	6,189	6,351	6,466	6,436	6,610	23,891	25,863	26,387
Provision for losses on loans	(1,455)	457	137	1,005	(759)	228	1,797	1,013	144	2,279	18,460
Other income	2,489	1,851	1,679	1,980	1,255	1,185	1,028	3,030	7,999	6,498	7,364
General, administrative and other expense	6,944	6,948	7,035	6,714	7,501	7,255	7,141	7,427	27,641	29,324	29,332
Earnings before income taxes	2,804	431	420	450	864	168	(1,474)	1,200	4,105	758	(14,041)
Federal income tax expense (credits)	20	(53)	(62)	37	2	5	(11)	548	(58)	544	518
NET EARNINGS (LOSS)	$ 2,784	$ 484	$ 482	$ 413	$ 862	$ 163	$ (1,463)	$ 652	$ 4,163	$ 214	$ (14,559)
EARNINGS (LOSS) PER SHARE
Basic	$ 0.27	$ 0.07	$ 0.06	$ 0.06	$ 0.12	$ 0.02	$ (0.20)	$ 0.09	$ 0.50	$ 0.03	$ (2.02)
Diluted	$ 0.27	$ 0.07	$ 0.06	$ 0.06	$ 0.12	$ 0.02	$ (0.20)	$ 0.09	$ 0.50	$ 0.03	$ (2.02)