INCOME TAXES (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Statutory federal income tax rate reconciliation [Abstract]
Statutory federal income tax rate (in hundredths)	34.00%	35.00%	35.00%
Computed tax benefit at statutory rate	$ (5,313,000)	$ (2,997,000)	$ (8,432,000)
Tax-exempt income	(42,000)	(2,000)	(28,000)
Department of Justice fine	680,000	0	0
Nondeductible expense	29,000	29,000	29,000
Bank owned life insurance	(188,000)	(137,000)	(133,000)
Increase in valuation allowance	4,834,000	3,107,000	8,564,000
Applicable income tax expense	0	0	0
Deferred tax assets [Abstract]
Allowance for loan and lease losses	5,863,000	5,998,000
Tax net loss carryforward	20,791,000	10,046,000
Asset valuation reserves	79,000	431,000
Security writedowns	1,429,000	1,929,000
OREO writedowns	4,475,000	7,462,000
Investment in partnerships	34,000	3,761,000
Accrued pension liability	5,745,000	5,453,000
Accrued stock-based compensation	804,000	812,000
Net operating loss carryovers from Knoblauch State Bank	1,197,000	1,232,000
Non-accrual interest	277,000	678,000
Capital loss carryover	1,561,000	1,589,000
Other	139,000	8,000
Deferred tax assets before valuation allowance	42,394,000	39,399,000
Less valuation allowance	(39,597,000)	(36,233,000)
Less valuation allowance for equity securities	0	(134,000)
Total deferred tax assets	2,797,000	3,032,000
Deferred tax liabilities [Abstract]
Penalties on delinquent tax certificates	224,000	398,000
Unrealized gains on investment securities available for sale	1,810,000	1,337,000
Accretion on investments	64,000	650,000
Prepaid deductions	285,000	270,000
Other	0	(37,000)
Total deferred tax liabilities	2,383,000	2,618,000
Net deferred tax assets, included in other assets	414,000	414,000
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	61,200,000
Operating loss carryforwards, expiration dates	2032-12-31
Increase in valuation allowance	3,200,000	3,000,000	7,700,000	10,200,000	15,500,000
Tax years subject to examination by various authorities	2005 through 2012
Knoblauch State Bank - Available to be utilized [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 3,500,000