RETIREMENT PLANS - Additional Information (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($) plan	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Compensation and Retirement Disclosure [Abstract]
Contributions charged	$ 361	$ 357	$ 311
Deferred Compensation Arrangement
Defined Benefit Plan Disclosure [Line Items]
Age to qualify for payment of retirement benefits	65 years
Estimated present value of future benefits to be paid	$ 115	125
Total annual expense	12	13	1
Supplemental Discretionary Deferred Compensation Plans
Defined Benefit Plan Disclosure [Line Items]
Total annual expense	30	25	10
Account balance of the trust	1,449	1,385
Supplemental Retirement and Salary Continuation Plans
Defined Benefit Plan Disclosure [Line Items]
Estimated present value of future benefits to be paid	5,211	4,844
Total annual expense	$ 626	575	549
Number of defined benefit pension plans \| plan	2
Life Insurance Coverage Post-retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Estimated present value of future benefits to be paid	$ 799	670
Total annual expense	$ 129	$ 104	$ 42