Loans (Details 4) (USD $)	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended		3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended		9 Months Ended				3 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended					12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended			3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Illinois/Indiana	Dec. 31, 2012 Illinois/Indiana	Sep. 30, 2013 Florida	Dec. 31, 2012 Florida	Sep. 30, 2013 In compliance with modified terms item	Sep. 30, 2012 In compliance with modified terms item	Sep. 30, 2013 In compliance with modified terms item	Sep. 30, 2012 In compliance with modified terms item	Sep. 30, 2013 In compliance with modified terms Illinois/Indiana item	Sep. 30, 2012 In compliance with modified terms Illinois/Indiana item	Sep. 30, 2013 In compliance with modified terms Illinois/Indiana item	Sep. 30, 2012 In compliance with modified terms Illinois/Indiana item	Sep. 30, 2013 In compliance with modified terms Florida item	Sep. 30, 2012 In compliance with modified terms Florida item	Sep. 30, 2013 Included in non-performing loans item	Sep. 30, 2012 Included in non-performing loans item	Sep. 30, 2013 Included in non-performing loans item	Sep. 30, 2012 Included in non-performing loans item	Sep. 30, 2012 Included in non-performing loans Illinois/Indiana item	Sep. 30, 2013 Included in non-performing loans Illinois/Indiana item	Sep. 30, 2012 Included in non-performing loans Illinois/Indiana item	Sep. 30, 2013 Included in non-performing loans Florida item	Sep. 30, 2012 Included in non-performing loans Florida item	Sep. 30, 2013 Included in non-performing loans Florida item	Sep. 30, 2012 Included in non-performing loans Florida item	Sep. 30, 2013 Commercial Illinois/Indiana	Dec. 31, 2012 Commercial Illinois/Indiana	Sep. 30, 2013 Commercial Florida	Dec. 31, 2012 Commercial Florida	Sep. 30, 2012 Commercial In compliance with modified terms Illinois/Indiana item	Sep. 30, 2012 Commercial Included in non-performing loans Illinois/Indiana item	Sep. 30, 2012 Commercial Included in non-performing loans Illinois/Indiana item	Sep. 30, 2013 Commercial real estate Illinois/Indiana	Dec. 31, 2012 Commercial real estate Illinois/Indiana	Sep. 30, 2013 Commercial real estate Florida	Dec. 31, 2012 Commercial real estate Florida	Sep. 30, 2013 Commercial real estate In compliance with modified terms	Sep. 30, 2013 Commercial real estate In compliance with modified terms	Sep. 30, 2012 Commercial real estate In compliance with modified terms item	Sep. 30, 2013 Commercial real estate In compliance with modified terms Illinois/Indiana item	Sep. 30, 2012 Commercial real estate In compliance with modified terms Illinois/Indiana item	Sep. 30, 2013 Commercial real estate In compliance with modified terms Illinois/Indiana item	Sep. 30, 2012 Commercial real estate In compliance with modified terms Illinois/Indiana item	Sep. 30, 2013 Commercial real estate In compliance with modified terms Florida item	Sep. 30, 2013 Commercial real estate Included in non-performing loans Illinois/Indiana item	Sep. 30, 2012 Commercial real estate Included in non-performing loans Florida item	Sep. 30, 2012 Commercial real estate Included in non-performing loans Florida item	Sep. 30, 2013 Real estate construction Illinois/Indiana	Dec. 31, 2012 Real estate construction Illinois/Indiana	Sep. 30, 2013 Real estate construction Florida	Dec. 31, 2012 Real estate construction Florida	Sep. 30, 2012 Real estate construction In compliance with modified terms item	Sep. 30, 2012 Real estate construction In compliance with modified terms Illinois/Indiana item	Sep. 30, 2013 Real estate construction Included in non-performing loans Illinois/Indiana item	Sep. 30, 2012 Real estate construction Included in non-performing loans Illinois/Indiana item	Sep. 30, 2013 Retail real estate Illinois/Indiana	Dec. 31, 2012 Retail real estate Illinois/Indiana	Sep. 30, 2013 Retail real estate Florida	Dec. 31, 2012 Retail real estate Florida	Sep. 30, 2012 Retail real estate In compliance with modified terms item	Sep. 30, 2012 Retail real estate In compliance with modified terms Illinois/Indiana item	Sep. 30, 2012 Retail real estate In compliance with modified terms Illinois/Indiana item	Sep. 30, 2012 Retail real estate In compliance with modified terms Florida item	Sep. 30, 2013 Retail real estate Included in non-performing loans Illinois/Indiana item	Sep. 30, 2013 Retail real estate Included in non-performing loans Florida item	Sep. 30, 2012 Retail real estate Included in non-performing loans Florida item	Sep. 30, 2013 Retail real estate Included in non-performing loans Florida item	Sep. 30, 2012 Retail real estate Included in non-performing loans Florida item	Dec. 31, 2012 Retail other Illinois/Indiana
Loans
Number of contracts							1	2	2	22	1	2	1	20	1	2																4										1	1	1	1	1									4								1	11	2
Recorded Investment							$ 218,000	$ 2,122,000	$ 308,000	$ 9,273,000	$ 218,000	$ 2,122,000	$ 218,000	$ 8,569,000	$ 90,000	$ 704,000																$ 1,455,000										$ 218,000	$ 2,069,000	$ 218,000	$ 2,069,000	$ 90,000									$ 3,170,000								$ 53,000	$ 1,875,000	$ 704,000
Number of contracts																	1	10	8	14	5	6	6	1	5	2	8						5	5													1	3	3							1	1									4	1	2	2	5
Recorded Investment																	114,000	2,159,000	3,242,000	4,530,000	519,000	3,008,000	1,994,000	114,000	1,640,000	234,000	2,536,000						519,000	519,000													1,650,000	1,451,000	1,451,000							267,000	1,475,000									1,091,000	114,000	189,000	234,000	1,085,000
Unpaid Contractual Principal Balance	44,935,000	70,963,000	26,266,000	42,315,000	18,669,000	28,648,000																						3,188,000	11,557,000						11,131,000	17,656,000	7,202,000	9,533,000												6,065,000	6,851,000	430,000	2,597,000					5,882,000	6,251,000	11,037,000	16,518,000
Recorded Investment with No Allowance	30,455,000	51,552,000	16,082,000	30,294,000	14,373,000	21,258,000																						1,585,000	7,214,000						6,674,000	12,020,000	4,344,000	5,988,000												4,037,000	6,394,000	430,000	2,597,000					3,786,000	4,666,000	9,599,000	12,673,000
Recorded Investment with Allowance	6,950,000	4,041,000	5,568,000	2,083,000	1,382,000	1,958,000																						1,227,000	265,000						2,429,000	1,288,000	1,016,000	585,000												618,000								1,294,000	530,000	366,000	1,373,000
Total Recorded Investment	37,405,000	55,593,000	21,650,000	32,377,000	15,755,000	23,216,000																						2,812,000	7,479,000						9,103,000	13,308,000	5,360,000	6,573,000												4,655,000	6,394,000	430,000	2,597,000					5,080,000	5,196,000	9,965,000	14,046,000
Related Allowance	2,987,000	1,757,000	2,773,000	1,039,000	214,000	718,000																						847,000	265,000						954,000	634,000	123,000	235,000												218,000								754,000	140,000	91,000	483,000
Average Recorded Investment	48,959,000	64,591,000	28,238,000	38,571,000	20,721,000	26,020,000																						5,255,000	10,109,000	38,000	271,000				10,937,000	14,607,000	6,877,000	6,506,000												6,815,000	8,625,000	1,733,000	3,989,000					5,231,000	5,206,000	12,073,000	15,254,000										24,000
Number of modifications for short-term interest-rate relief																																																														4
Recorded investment for short-term interest-rate relief																																								100,000																						1,000,000
Number of modifications for short-term principal payment relief																																									4													3								9
Recorded investment for short-term principal payment relief																																							200,000	200,000														300,000								1,600,000
Number of modifications for forbearance agreement																																																						1
Recorded investment for forbearance agreement																																																						$ 2,900,000
Minimum days past due for TDR loans to be classified as non-performing																																								90 days