Segments (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014 Segment		Jun. 30, 2013		Dec. 31, 2013
Segments [Abstract]
Number of reportable segments					2
Selected financial information for reportable segments [Abstract]
Total assets	$ 2,249,864,000				$ 2,249,864,000				$ 2,209,943,000
Interest income	20,357,000		21,862,000		40,640,000		43,812,000
Net interest income	18,538,000		19,523,000		37,016,000		39,079,000
Provision for loan losses	(1,845,000)		(2,107,000)		(1,417,000)		(2,798,000)
Income (loss) before income tax	7,899,000		6,899,000		12,504,000		12,741,000
Net Income (loss)	6,052,000		63,388,000		9,190,000		69,195,000
Reversal of valuation allowance on net deferred tax assets			57,600,000
Other [Member]
Selected financial information for reportable segments [Abstract]
Total assets	297,632,000	[1],[2]			297,632,000	[1],[2]			272,348,000	[1],[2]
Interest income	16,000	[1],[2]	0	[1],[2]	16,000	[1],[2]	0	[1],[2]
Net interest income	(326,000)	[1],[2]	(590,000)	[1],[2]	(613,000)	[1],[2]	(1,171,000)	[1],[2]
Provision for loan losses	0	[1],[2]	0	[1],[2]	0	[1],[2]	0	[1],[2]
Income (loss) before income tax	(397,000)	[1],[2]	(742,000)	[1],[2]	(802,000)	[1],[2]	(2,518,000)	[1],[2]
Net Income (loss)	(136,000)	[1],[2]	7,808,000	[1],[2]	(399,000)	[1],[2]	6,032,000	[1],[2]
Reversal of valuation allowance on net deferred tax assets			8,500,000				8,500,000
Operating Segments [Member] | IB [Member]
Selected financial information for reportable segments [Abstract]
Total assets	2,142,496,000	[2]			2,142,496,000	[2]			2,104,550,000	[2]
Interest income	18,511,000	[2]	18,935,000	[2]	36,709,000	[2]	37,715,000	[2]
Net interest income	17,384,000	[2]	17,807,000	[2]	34,467,000	[2]	35,423,000	[2]
Provision for loan losses	(1,838,000)	[2]	(2,093,000)	[2]	(1,395,000)	[2]	(2,780,000)	[2]
Income (loss) before income tax	8,014,000	[2]	10,637,000	[2]	12,692,000	[2]	17,456,000	[2]
Net Income (loss)	6,115,000	[2]	57,442,000	[2]	9,297,000	[2]	64,506,000	[2]
Reversal of valuation allowance on net deferred tax assets			49,100,000				49,100,000
Operating Segments [Member] | Mepco [Member]
Selected financial information for reportable segments [Abstract]
Total assets	82,334,000				82,334,000				94,648,000
Interest income	1,846,000		2,927,000		3,931,000		6,097,000
Net interest income	1,480,000		2,306,000		3,162,000		4,827,000
Provision for loan losses	(7,000)		(14,000)		(22,000)		(18,000)
Income (loss) before income tax	305,000		(2,973,000)		661,000		(2,150,000)
Net Income (loss)	201,000		(1,839,000)		444,000		(1,296,000)
Elimination [Member]
Selected financial information for reportable segments [Abstract]
Total assets	(272,598,000)	[3]			(272,598,000)	[3]			(261,603,000)	[3]
Interest income	(16,000)	[3]	0	[3]	(16,000)	[3]	0	[3]
Net interest income	0	[3]	0	[3]	0	[3]	0	[3]
Provision for loan losses	0	[3]	0	[3]	0	[3]	0	[3]
Income (loss) before income tax	(23,000)	[3]	(23,000)	[3]	(47,000)	[3]	(47,000)	[3]
Net Income (loss)	$ (128,000)	[3]	$ (23,000)	[3]	$ (152,000)	[3]	$ (47,000)	[3]

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

[2] IB and Other (parent company) include $49.1 million and $8.5 million, respectively of income tax benefit related to the reversal of the substantially all of the valuation allowance on our net deferred tax assets in both the three and six month periods ending June 30, 2013 (see note #10).

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