FAIR VALUE - Quantitative Information about Level 3 Value Measurements - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Impaired Loans | Minimum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	0.00%
Impaired Loans | Maximum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	50.00%
Other real estate owned | Minimum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	0.00%
Other real estate owned | Maximum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	50.00%
Non-recurring basis | Level 3 | Impaired Loans
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value
Fair Value	$ 1,140	$ 1,290
Non-recurring basis | Level 3 | Impaired Loans | Sales comparison approach | Minimum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	10.00%
Non-recurring basis | Level 3 | Impaired Loans | Farm
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value
Fair Value	$ 58	$ 55
Non-recurring basis | Level 3 | Impaired Loans | Farm | Sales comparison approach
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	10.00%	40.00%
Non-recurring basis | Level 3 | Impaired Loans | Farm | Sales comparison approach | Average
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	10.00%	40.00%
Non-recurring basis | Level 3 | Impaired Loans | Other and 1-4 family | Sales comparison approach | Average
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)		36.00%
Non-recurring basis | Level 3 | Impaired Loans | Other
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value
Fair Value	$ 1,082	$ 1,235
Non-recurring basis | Level 3 | Impaired Loans | Other | Sales comparison approach | Minimum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	0.00%	20.00%
Non-recurring basis | Level 3 | Impaired Loans | Other | Sales comparison approach | Maximum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)	20.00%	45.00%
Non-recurring basis | Level 3 | Other real estate owned
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value
Fair Value		$ 462
Non-recurring basis | Level 3 | Other real estate owned | Construction and development
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value
Fair Value		$ 21
Non-recurring basis | Level 3 | Other real estate owned | Construction and development | Sales comparison approach
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)		15.00%
Non-recurring basis | Level 3 | Other real estate owned | Construction and development | Sales comparison approach | Average
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)		15.00%
Non-recurring basis | Level 3 | Other real estate owned | Other and 1-4 family
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value
Fair Value		$ 441
Non-recurring basis | Level 3 | Other real estate owned | Other and 1-4 family | Sales comparison approach | Minimum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)		10.00%
Non-recurring basis | Level 3 | Other real estate owned | Other and 1-4 family | Sales comparison approach | Maximum
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)		19.00%
Non-recurring basis | Level 3 | Other real estate owned | Other and Home equity | Sales comparison approach | Average
Unobservable Inputs
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)		11.00%
Non-recurring basis | Level 3 | Mortgage servicing rights
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value
Fair Value	$ 531	$ 1,854
Non-recurring basis | Level 3 | Mortgage servicing rights | Cash flow analysis
Unobservable Inputs
Discount rate (as a percent)	10.00%
Adjustment for differences between comparable sales, type of property, current status of property (as a percent)		10.00%