Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011		Dec. 31, 2011
Segments [Abstract]
Number of reportable segments					2
Selected financial information for reportable segments [Abstract]
Total assets	$ 2,400,832		$ 2,317,373		$ 2,400,832		$ 2,317,373		$ 2,307,406
Interest income	24,733		28,187		75,684		88,032
Net interest income	21,451		23,774		65,381		71,608
Provision for loan losses	251		6,171		6,438		21,029
Income (loss) before income tax	6,446		(4,604)		14,283		(12,234)
Net income (loss)	6,446		(4,122)		14,283		(11,486)
IB [Member]
Selected financial information for reportable segments [Abstract]
Total assets	2,252,476		2,116,134		2,252,476		2,116,134
Interest income	21,057		22,913		64,452		71,226
Net interest income	19,380		20,474		59,085		61,078
Provision for loan losses	270		6,165		6,436		20,986
Income (loss) before income tax	6,988		(3,594)		14,945		(9,463)
Net income (loss)	7,125		(3,164)		15,726		(9,097)
Mepco [Member]
Selected financial information for reportable segments [Abstract]
Total assets	145,690		202,034		145,690		202,034
Interest income	3,676		5,274		11,232		16,806
Net interest income	2,806		3,982		8,487		12,556
Provision for loan losses	(19)		6		2		43
Income (loss) before income tax	405		(150)		2,298		(1,062)
Net income (loss)	268		(96)		1,517		(678)
Other [Member]
Selected financial information for reportable segments [Abstract]
Total assets	178,098	[1]	168,422	[1]	178,098	[1]	168,422	[1]
Interest income	0	[1]	0	[1]	0	[1]	0	[1]
Net interest income	(735)	[1]	(682)	[1]	(2,191)	[1]	2,026	[1]
Provision for loan losses	0	[1]	0	[1]	0	[1]	0	[1]
Income (loss) before income tax	(923)	[1]	(836)	[1]	(2,889)	[1]	1,638	[1]
Net income (loss)	(923)	[1]	(838)	[1]	(2,889)	[1]	1,640	[1]
Elimination [Member]
Selected financial information for reportable segments [Abstract]
Total assets	(175,432)	[2]	(169,217)	[2]	(175,432)	[2]	(169,217)	[2]
Interest income	0	[2]	0	[2]	0	[2]	0	[2]
Net interest income	0	[2]	0	[2]	0	[2]	0	[2]
Provision for loan losses	0	[2]	0	[2]	0	[2]	0	[2]
Income (loss) before income tax	(24)	[2]	(24)	[2]	(71)	[2]	(71)	[2]
Net income (loss)	$ (24)	[2]	$ (24)	[2]	$ (71)	[2]	$ (71)	[2]

[1] Includes amounts relating to our parent company and certain insignificant operations

[2] Includes parent company's investment in subsidiaries and cash balances maintained at subsidiary.