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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option expense	$ 83	$ 86	$ 156	$ 146
Unrecognized compensation cost related to stock options	700		$ 700
Weighted-average period related to stock compensation			3 years 7 months 6 days
Restricted stock awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period related to stock compensation			3 years 7 months 6 days
Share-based compensation expense	400	$ 300	$ 700	$ 500
Unrecognized compensation cost related to time vested restricted stock award	$ 4,100		$ 4,100
Restricted stock awards \| Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Requisite service period			5 years
Restricted stock awards \| Nonemployee directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Requisite service period			2 years
Restricted stock awards \| Non-employee directors and certain officers \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned compensation related to awards amortized to compensation expense, vesting period			2 years
Restricted stock awards \| Non-employee directors and certain officers \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned compensation related to awards amortized to compensation expense, vesting period			5 years
Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Reserve of common stock for grant, award or issuance to directors and employees (in shares)	600,000		600,000
Shares available for future grants (in shares)	243,712		243,712