REGULATORY MATTERS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2015	Sep. 30, 2019
Regulatory matters
Capital conservation buffer percentage (as a percent)	2.50%	1.875%	0.00%
Total Capital (to Risk Weighted Assets)
Actual amount		$ 166,851		$ 192,706
Actual ratio (as a percent)		18.16%		19.51%
Tier I Capital (to Risk Weighted Assets)
Actual amount		$ 160,207		$ 185,856
Actual ratio (as a percent)		17.44%		18.82%
Common Tier 1 (CET1)
Actual amount		$ 160,207		$ 185,856
Actual ratio (as a percent)		17.44%		18.82%
Tier 1 Capital (to Average Assets)
Actual amount		$ 160,207		$ 185,856
Actual ratio (as a percent)		11.14%		11.68%
Bank
Total Capital (to Risk Weighted Assets)
Actual amount		$ 163,339		$ 190,742
Actual ratio (as a percent)		17.80%		19.34%
Capital Adequacy Purposes, amount		$ 73,392		$ 78,902
Capital Adequacy Purposes, ratio (as a percent)		8.00%		8.00%
To be Well Capitalized Under Prompt Corrective Action Provisions, amount		$ 91,740		$ 98,628
To be Well Capitalized Under Prompt Corrective Action Provisions, ratio (as a percent)		10.00%		10.00%
Tier I Capital (to Risk Weighted Assets)
Actual amount		$ 156,696		$ 183,892
Actual ratio (as a percent)		17.08%		18.65%
Capital Adequacy Purposes, amount		$ 55,044		$ 59,177
Capital Adequacy Purposes, ratio (as a percent)		6.00%		6.00%
To be Well Capitalized Under Prompt Corrective Action Provisions, amount		$ 73,392		$ 78,902
To be Well Capitalized Under Prompt Corrective Action Provisions, ratio (as a percent)		8.00%		8.00%
Common Tier 1 (CET1)
Actual amount		$ 156,696		$ 183,892
Actual ratio (as a percent)		17.08%		18.65%
Capital Adequacy Purposes, amount		$ 41,283		$ 44,383
Capital Adequacy Purposes, ratio (as a percent)		4.50%		4.50%
To be Well Capitalized Under Prompt Corrective Action Provisions, amount		$ 59,631		$ 64,108
To be Well Capitalized Under Prompt Corrective Action Provisions, ratio (as a percent)		6.50%		6.50%
Tier 1 Capital (to Average Assets)
Actual amount		$ 156,696		$ 183,892
Actual ratio (as a percent)		10.91%		11.56%
Capital Adequacy Purposes, amount		$ 57,455		$ 63,605
Capital Adequacy Purposes, ratio (as a percent)		4.00%		4.00%
To be Well Capitalized Under Prompt Corrective Action Provisions, amount		$ 71,819		$ 79,506
To be Well Capitalized Under Prompt Corrective Action Provisions, ratio (as a percent)		5.00%		5.00%