INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Examination
State net operating loss carryforwards	$ 951
Operating loss carryforwards, state tax benefits net of federal taxes	618	$ 505
State tax credit and state tax loss carryforwards, valuation allowance	485	383
Net change in the valuation allowance related to utilization and expiration of tax carryforwards	102	70	$ 64
Unrecognized income tax benefits, interest and penalties recognized	62	110	$ 80
Unrecognized income tax benefits, accrued interest	693	967
Unrecognized income tax benefits, accrued penalties	$ 171	$ 218
State Jurisdiction | Minimum
Income Tax Examination
Tax years remain open to examination	2012
State Jurisdiction | Maximum
Income Tax Examination
Tax years remain open to examination	2015
Internal Revenue Service (IRS) | Minimum
Income Tax Examination
Tax years remain open to examination	2013
Internal Revenue Service (IRS) | Maximum
Income Tax Examination
Tax years remain open to examination	2015
Expiring After 2017
Income Tax Examination
State net operating loss carryforwards	$ 8
Expiring After 2018
Income Tax Examination
State net operating loss carryforwards	6
Expiring After 2019
Income Tax Examination
State net operating loss carryforwards	5
Expiring After 2021
Income Tax Examination
State net operating loss carryforwards	2
Expiring Beyond 2022
Income Tax Examination
State net operating loss carryforwards	$ 927
Period 1
Income Tax Examination
State net operating loss carryforwards, expiration period	5 years
Period 2
Income Tax Examination
State net operating loss carryforwards, expiration period	15 years
Period 3
Income Tax Examination
State net operating loss carryforwards, expiration period	20 years