STOCKHOLDERS' EQUITY - Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2018
Equity Incentive Plan
Shares available for grant				1,390,000
Restricted stock activity
Balance at the beginning of the period (in shares)	202,010
Granted (in shares)	183,559
Vested (in shares)	(88,156)
Forfeited (in shares)	(12,020)
Balance at the end of the period (in shares)	285,393	202,010
Activity in the Company's vested and nonvested shares of restricted stock
Compensation expense	$ 1,880	$ 1,102	$ 581
Total fair value of shares vested	1,312	854	347
Weighted average grant date fair value	2,829	2,186	1,592
Total compensation cost related to non-vested awards that have not yet been recognized	$ 3,100	$ 2,300	$ 1,200
Weighted-average period over which non-vested awards are expected to be recognized	2 years 3 months 18 days	2 years 1 month 6 days	1 year 11 months 12 days
Directors
Activity in the Company's vested and nonvested shares of restricted stock
Compensation expense	$ 343	$ 427	$ 317
Total fair value of shares vested	373	405	347
Weighted average grant date fair value	302	427	338
Officer
Activity in the Company's vested and nonvested shares of restricted stock
Compensation expense	1,537	675	264
Total fair value of shares vested	939	449	0
Weighted average grant date fair value	$ 2,527	$ 1,759	$ 1,254
Restricted Stock
Equity Incentive Plan
Shares granted	737,087
Future Anticipated Vesting Schedule
2020 (in shares)	118,194
2021 (in shares)	87,566
2022 (in shares)	62,424
2023 (in shares)	17,209
2024 (in shares)	0
Total (in shares)	285,393
Restricted Stock | Maximum
Equity Incentive Plan
Award vesting period	4 years
Restricted Stock | Minimum
Equity Incentive Plan
Award vesting period	1 year
Restricted Stock | Directors
Restricted stock activity
Balance at the beginning of the period (in shares)	22,554
Granted (in shares)	19,665
Vested (in shares)	(25,853)
Forfeited (in shares)	(4,034)
Balance at the end of the period (in shares)	12,332	22,554
Future Anticipated Vesting Schedule
2020 (in shares)	11,498
2021 (in shares)	834
2022 (in shares)	0
2023 (in shares)	0
2024 (in shares)	0
Total (in shares)	12,332
Restricted Stock | Officer
Restricted stock activity
Balance at the beginning of the period (in shares)	179,456
Granted (in shares)	102,300
Vested (in shares)	(62,303)
Forfeited (in shares)	(7,986)
Balance at the end of the period (in shares)	211,467	179,456
Future Anticipated Vesting Schedule
2020 (in shares)	96,752
2021 (in shares)	69,510
2022 (in shares)	45,205
2023 (in shares)	0
2024 (in shares)	0
Total (in shares)	211,467
Restricted Stock | May 1, 2012
Equity Incentive Plan
Shares granted	35,135
Restricted Stock | June 18, 2012
Equity Incentive Plan
Shares granted	7,027
Restricted Stock | July 9, 2012
Equity Incentive Plan
Shares granted	25,000
Restricted Stock | June 26, 2013
Equity Incentive Plan
Shares granted	22,526
Restricted Stock | November 25, 2013
Equity Incentive Plan
Shares granted	30,381
Restricted Stock | January 31, 2014
Equity Incentive Plan
Shares granted	48,273
Restricted Stock | February 26, 2014
Equity Incentive Plan
Shares granted	12,030
Restricted Stock | February 27, 2014
Equity Incentive Plan
Shares granted	22,354
Restricted Stock | June 24, 2014
Equity Incentive Plan
Shares granted	17,658
Restricted Stock | June 24, 2015
Equity Incentive Plan
Shares granted	25,555
Restricted Stock | April 25, 2016
Equity Incentive Plan
Shares granted	10,000
Restricted Stock | June 27, 2016
Equity Incentive Plan
Shares granted	24,680
Restricted Stock | April 25, 2017
Equity Incentive Plan
Shares granted	81,710
Restricted Stock | June 7, 2017
Equity Incentive Plan
Shares granted	18,224
Restricted Stock | October 17, 2017
Equity Incentive Plan
Shares granted	7,278
Restricted Stock | December 15, 2017
Equity Incentive Plan
Shares granted	8,948
Restricted Stock | May 14, 2018
Equity Incentive Plan
Shares granted	31,766
Restricted Stock | June 26, 2018
Equity Incentive Plan
Shares granted	67,918
Restricted Stock | December 14, 2018
Equity Incentive Plan
Shares granted	57,065
Restricted Stock | March 7, 2019
Equity Incentive Plan
Shares granted	102,300
Restricted Stock | April 23, 2019
Equity Incentive Plan
Shares granted	19,665
Restricted Stock | December 20, 2019
Equity Incentive Plan
Shares granted	61,594
Restricted Stock Units | Officer
Restricted stock activity
Balance at the beginning of the period (in shares)	0
Granted (in shares)	61,594
Vested (in shares)	0
Forfeited (in shares)	0
Balance at the end of the period (in shares)	61,594	0
Future Anticipated Vesting Schedule
2020 (in shares)	9,944
2021 (in shares)	17,222
2022 (in shares)	17,219
2023 (in shares)	17,209
2024 (in shares)	0
Total (in shares)	61,594