EMPLOYEE BENEFIT PLANS - 401(k) and ESOP Requirements (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)
EMPLOYEE BENEFIT PLANS
Minimum employee age required to participate in the plan | item	21
Period an employee is required to be employed to participate in the plan	1 year
Minimum hours an employee is required to work per year to participate in the plan	1000 hours
Minimum voluntary contributions by participating employees (as a percent)	1.00%
Maximum voluntary contributions by participating employees (as a percent)	75.00%
Employer matching contribution (as a percent)	50.00%
Percentage of base compensation matched by employer	3.00%
Maximum discretionary contribution by employer as a percentage of employee's salary	3.00%
Expense attributable to 401(k) plan	$ 152,000	$ 146,000
Incentive compensation expense	130,000	167,000
Expense attributable to executive supplemental retirement agreements	181,000	139,000
Expense attributable to the plan amounted	$ 1,713,000	$ 1,532,000
Employee Stock Ownership Plan
Minimum employee age required to participate in the plan | item	21
Period of service to be completed to participate in the plan	1 year
Amount borrowed for the purpose of purchasing shares of the entity's common stock under ESOP loan agreement	$ 1,237,000
Number of remaining annual principal and interest payments | item	10
Annual principal and interest on ESOP loan agreement	$ 104,000