Loans (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended									12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended			12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended			12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended			12 Months Ended
	Mar. 31, 2013 item	Dec. 31, 2012 item	Mar. 31, 2013 Illinois/Indiana	Dec. 31, 2012 Illinois/Indiana	Mar. 31, 2013 Florida	Dec. 31, 2012 Florida	Mar. 31, 2012 In compliance with modified terms item	Mar. 31, 2012 In compliance with modified terms Illinois/Indiana item	Mar. 31, 2013 Included in non-performing loans item	Mar. 31, 2012 Included in non-performing loans item	Mar. 31, 2013 Included in non-performing loans Illinois/Indiana item	Mar. 31, 2012 Included in non-performing loans Illinois/Indiana item	Mar. 31, 2013 Included in non-performing loans Florida item	Mar. 31, 2012 Included in non-performing loans Florida item	Mar. 31, 2013 Commercial Illinois/Indiana	Dec. 31, 2012 Commercial Illinois/Indiana	Mar. 31, 2013 Commercial Florida	Dec. 31, 2012 Commercial Florida	Mar. 31, 2012 Commercial In compliance with modified terms Illinois/Indiana item	Mar. 31, 2013 Commercial real estate Illinois/Indiana	Dec. 31, 2012 Commercial real estate Illinois/Indiana	Mar. 31, 2013 Commercial real estate Florida	Dec. 31, 2012 Commercial real estate Florida	Mar. 31, 2013 Commercial real estate Included in non-performing loans Illinois/Indiana item	Mar. 31, 2012 Commercial real estate Included in non-performing loans Illinois/Indiana item	Mar. 31, 2013 Real estate construction Illinois/Indiana	Dec. 31, 2012 Real estate construction Illinois/Indiana	Mar. 31, 2013 Real estate construction Florida	Dec. 31, 2012 Real estate construction Florida	Mar. 31, 2012 Real estate construction In compliance with modified terms Illinois/Indiana item	Mar. 31, 2012 Real estate construction Included in non-performing loans Florida item	Mar. 31, 2013 Retail real estate Illinois/Indiana	Dec. 31, 2012 Retail real estate Illinois/Indiana	Mar. 31, 2013 Retail real estate Florida	Dec. 31, 2012 Retail real estate Florida	Mar. 31, 2013 Retail real estate Included in non-performing loans Florida item	Mar. 31, 2012 Retail real estate Included in non-performing loans Florida item	Mar. 31, 2013 Retail other Illinois/Indiana	Dec. 31, 2012 Retail other Illinois/Indiana
Loans
Number of contracts							3	3											2											1
Recorded Investment							$ 4,299	$ 4,299											$ 1,280											$ 3,019
Number of contracts									4	3	1	1	3	2										1	1						1					3	1
Recorded Investment									2,107	4,868	1,700	4,068	407	800										1,700	4,068						657					407	143
Unpaid Contractual Principal Balance	65,088	70,963	39,765	42,315	25,293	28,648									9,250	11,557				14,929	17,656	8,751	9,533			9,203	6,851	2,593	2,597			6,413	6,251	13,949	16,518
Recorded Investment with No Allowance	46,267	51,552	26,223	30,294	20,044	21,258									4,605	7,214				10,358	12,020	5,770	5,988			5,952	6,394	2,593	2,597			5,308	4,666	11,681	12,673
Recorded Investment with Allowance	5,210	4,041	5,115	2,083	95	1,958									589	265				1,702	1,288		585			2,794						30	530	95	1,373
Total Recorded Investment	51,477	55,593	31,338	32,377	20,139	23,216									5,194	7,479				12,060	13,308	5,770	6,573			8,746	6,394	2,593	2,597			5,338	5,196	11,776	14,046
Related Allowance	2,541	1,757	2,516	1,039	25	718									589	265				847	634		235			1,050						30	140	25	483
Average Recorded Investment	$ 59,629	$ 64,591	$ 35,600	$ 38,571	$ 24,029	$ 26,020									$ 8,352	$ 10,109	$ 157	$ 271		$ 13,138	$ 14,607	$ 6,355	$ 6,506			$ 8,958	$ 8,625	$ 3,460	$ 3,989			$ 5,142	$ 5,206	$ 14,057	$ 15,254			$ 10	$ 24
Number of Recent Quarters Used to Calculate Average Recorded Investment	4	4