FAIR VALUE MEASUREMENTS (Details 4) (USD $)					9 Months Ended					9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Non-recurring Total losses	Sep. 30, 2012 Level 3 Inputs Recurring	Sep. 30, 2012 Level 3 Inputs Recurring Pricing Model	Sep. 30, 2012 Level 3 Inputs Recurring Trading Account Security Discounted Cash Flow	Sep. 30, 2012 Level 3 Inputs Recurring Interest rate lock commitments Historical Trend	Sep. 30, 2012 Level 3 Inputs Non-recurring	Dec. 31, 2011 Level 3 Inputs Non-recurring	Sep. 30, 2012 Level 3 Inputs Non-recurring Minimum Impaired loans Fair value of collateral	Sep. 30, 2012 Level 3 Inputs Non-recurring Minimum Capitalized mortgage servicing rights Discounted Cash Flow	Sep. 30, 2012 Level 3 Inputs Non-recurring Maximum Impaired loans Fair value of collateral	Sep. 30, 2012 Level 3 Inputs Non-recurring Maximum Capitalized mortgage servicing rights Discounted Cash Flow	Sep. 30, 2012 Level 3 Inputs Non-recurring Maximum Other real estate owned Fair value of collateral	Sep. 30, 2012 Level 3 Inputs Non-recurring Weighted Average Impaired loans Fair value of collateral	Sep. 30, 2012 Level 3 Inputs Non-recurring Weighted Average Capitalized mortgage servicing rights Discounted Cash Flow	Sep. 30, 2012 Level 3 Inputs Non-recurring Weighted Average Other real estate owned Fair value of collateral
Quantitative information about the significant unobservable inputs within Level 3
Assets measured on recurring basis				$ 25,070,000		$ 17,237,000	$ 7,833,000
Discount Rate						2.08%					11.00%		15.50%			11.21%
Closing Ratio							88.55%
Origination Costs					2,500,000
Impaired loans			4,206,000					6,949,000	11,155,000
Capitalized mortgage servicing rights			573,000					2,494,000	3,067,000
Other real estate owned	1,399,000	1,900,000						1,399,000	1,900,000
Total Assets			4,779,000					10,842,000	16,122,000
Loss severity										12.36%		32.10%			19.43%
Appraised value										$ 126.0		$ 2,500.0		$ 590.0	$ 1,411.5		$ 288.8
Constant prepayment rate (CPR)											13.85%		23.93%			17.25%