Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended					9 Months Ended			12 Months Ended			36 Months Ended
	Sep. 30, 2012	Sep. 29, 2011	Sep. 30, 2011	Dec. 31, 2009		Sep. 30, 2012 Segments		Sep. 30, 2011	Dec. 31, 2011		Dec. 31, 2010	Jun. 30, 2012
Segment Reporting Information
Number of Reportable Segments						2
Segment Reporting Information, Profit (Loss)
Interest income	$ 19,446	$ 21,565	$ 21,565			$ 60,179		$ 67,587
Interest expense	4,257	5,940	5,940			13,941		20,686
Net interest income	15,189	15,625	15,625			46,238		46,901
Provision for loan losses	4,251	1,956	1,956			8,820		17,216
Net interest income (loss) after provision for loan losses	10,938	13,669	13,669			37,418		29,685
Other income	4,665	5,223	5,223			12,581		13,771
Other expense	14,792	12,829	12,829			44,102		53,871
Income (loss) before income taxes	811	6,063	6,063	6,545	[1]	5,897	[2]	(10,415)	(7,701)		(1,402)	(3,206)
Income taxes	54	2,384	2,384			(9,329)		6,905
Net income (loss)	757	3,679	3,679			15,226		(17,320)
Segment Reporting Information, Balance Sheet Data
Total assets	1,920,378		2,047,131			1,920,378		2,047,131	1,993,188	[3]
Net loans	1,331,637		1,439,927			1,331,637		1,439,927	1,418,076	[3]
Loans held for sale	24,766		13,801			24,766		13,801	19,534	[3]
Goodwill			0					0
Bank Activities
Segment Reporting Information, Profit (Loss)
Interest income	19,238	21,400				59,641		67,351
Interest expense	3,985	5,738				13,215		19,891
Net interest income	15,253	15,662				46,426		47,460
Provision for loan losses	4,254	1,922				8,842		17,162
Net interest income (loss) after provision for loan losses	10,999	13,740				37,584		30,298
Other income	3,060	4,281				8,134		10,431
Other expense	13,589	11,299				40,781		42,408
Income (loss) before income taxes	470	6,722				4,937		(1,679)
Income taxes	54	2,384				(9,329)		6,905
Net income (loss)	416	4,338				14,266		(8,584)
Segment Reporting Information, Balance Sheet Data
Total assets	1,899,745		2,026,753			1,899,745		2,026,753
Net loans	1,331,637		1,439,927			1,331,637		1,439,927
Loans held for sale	0		357			0		357
Goodwill			0					0
Mortgage Activities
Segment Reporting Information, Profit (Loss)
Interest income	208	165				538		236
Interest expense	61	10				90		219
Net interest income	147	155				448		17
Provision for loan losses	(3)	34				(22)		54
Net interest income (loss) after provision for loan losses	150	121				470		(37)
Other income	1,599	996				4,412		3,476
Other expense	1,192	1,528				3,297		11,433
Income (loss) before income taxes	557	(411)				1,585		(7,994)
Income taxes	0	0				0		0
Net income (loss)	557	(411)				1,585		(7,994)
Segment Reporting Information, Balance Sheet Data
Total assets	33,208		23,142			33,208		23,142
Net loans	0		0			0		0
Loans held for sale	24,766		13,444			24,766		13,444
Goodwill			0					0
Other
Segment Reporting Information, Profit (Loss)
Interest income	0	0				0		0
Interest expense	211	192				636		576
Net interest income	(211)	(192)				(636)		(576)
Provision for loan losses	0	0				0		0
Net interest income (loss) after provision for loan losses	(211)	(192)				(636)		(576)
Other income	6	(54)				35		(136)
Other expense	11	2				24		30
Income (loss) before income taxes	(216)	(248)				(625)		(742)
Income taxes	0	0				0		0
Net income (loss)	(216)	(248)				(625)		(742)
Segment Reporting Information, Balance Sheet Data
Total assets	(12,575)		(2,764)			(12,575)		(2,764)
Net loans	0		0			0		0
Loans held for sale	0		0			0		0
Goodwill			0					0
Intersegment Elimination [Member]
Segment Reporting Information, Balance Sheet Data
Bank Due from Sidus	10,689		3,286			10,689		3,286
Bank investment in Sidus	3,000		3,000			3,000		3,000
Bank A/R from Sidus	0		614			0		614
Parent [Member] | Other
Segment Reporting Information, Balance Sheet Data
Total assets	$ 1,114		$ 1,258			$ 1,114		$ 1,258

[1] 4th quarter of 2009

[2] First nine months of 2012

[3] Derived from audited consolidated financial statements