INVESTMENTS - Available for Sale Securities by Contractual Maturity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt and Equity Securities, FV-NI [Line Items]
Proceeds from sale of available-for-sale securities	$ 0	$ 0	$ 12,214,000
Gains from securities available-for-sale	0	0	$ 300,000
Amortized Cost
Securities available-for-sale, Total	271,793,000	272,051,000
Securities held-to-maturity, Total	8,500,000	7,500,000
Total securities	280,293,000	279,551,000
Fair Value
Securities available-for-sale, Total	229,252,000	271,359,000
Securities held-to-maturity, Total	7,929,000	8,128,000
Total securities	237,181,000	279,487,000
U.S. agency securities
Amortized Cost
Securities available-for-sale, Due after one year through five years	4,874,000	959,000
Securities available-for-sale, Due after five years through ten years	6,989,000	6,920,000
Securities available-for-sale, Due after ten years	9,290,000	13,276,000
Securities available-for-sale, Subtotal	21,153,000	21,155,000
Securities available-for-sale, Total	21,153,000	21,155,000
Fair Value
Securities available-for-sale, Due after one year through five years	4,321,000	1,004,000
Securities available-for-sale, Due after five years through ten years	5,963,000	6,850,000
Securities available-for-sale, Due after ten years	7,004,000	13,116,000
Securities available-for-sale, Subtotal	17,288,000	20,970,000
Securities available-for-sale, Total	17,288,000	20,970,000
Corporate securities
Amortized Cost
Securities available-for-sale, Due in one year or less	1,000,000
Securities available-for-sale, Due after one year through five years	2,497,000	3,495,000
Securities available-for-sale, Due after five years through ten years	4,000,000	4,000,000
Securities available-for-sale, Due after ten years	2,000,000	2,000,000
Securities available-for-sale, Subtotal	9,497,000	9,495,000
Securities available-for-sale, Total	9,497,000	9,495,000
Securities held-to-maturity, Due after five years through ten years	8,500,000	7,500,000
Fair Value
Securities available-for-sale, Due in one year or less	997,000
Securities available-for-sale, Due after one year through five years	2,519,000	3,526,000
Securities available-for-sale, Due after five years through ten years	3,763,000	3,627,000
Securities available-for-sale, Due after ten years	1,266,000	1,849,000
Securities available-for-sale, Subtotal	8,545,000	9,002,000
Securities available-for-sale, Total	8,545,000	9,002,000
Securities held-to-maturity, Due after five years through ten years	7,929,000	8,128,000
Municipal bonds
Amortized Cost
Securities available-for-sale, Due in one year or less	2,660,000
Securities available-for-sale, Due after one year through five years	1,038,000	3,724,000
Securities available-for-sale, Due after five years through ten years	6,341,000	6,857,000
Securities available-for-sale, Due after ten years	134,161,000	125,796,000
Securities available-for-sale, Subtotal	144,200,000	136,377,000
Securities available-for-sale, Total	144,200,000	136,377,000
Fair Value
Securities available-for-sale, Due in one year or less	2,644,000
Securities available-for-sale, Due after one year through five years	1,012,000	3,850,000
Securities available-for-sale, Due after five years through ten years	5,771,000	7,035,000
Securities available-for-sale, Due after ten years	111,175,000	124,548,000
Securities available-for-sale, Subtotal	120,602,000	135,433,000
Securities available-for-sale, Total	120,602,000	135,433,000
Mortgage-backed securities
Amortized Cost
Securities available-for-sale, Mortgage-backed securities	82,424,000	88,641,000
Securities available-for-sale, Total	82,424,000	88,641,000
Fair Value
Securities available-for-sale, Mortgage-backed securities	69,966,000	89,402,000
Securities available-for-sale, Total	69,966,000	89,402,000
Federal National Mortgage Association ("FNMA")
Amortized Cost
Securities available-for-sale, Mortgage-backed securities	68,421,000	75,171,000
Fair Value
Securities available-for-sale, Mortgage-backed securities	57,358,000	75,737,000
Federal Home Loan Mortgage Corporation ("FHLMC")
Amortized Cost
Securities available-for-sale, Mortgage-backed securities	9,290,000	9,606,000
Fair Value
Securities available-for-sale, Mortgage-backed securities	8,424,000	9,768,000
Government National Mortgage Association ("GNMA")
Amortized Cost
Securities available-for-sale, Mortgage-backed securities	4,713,000	3,864,000
Fair Value
Securities available-for-sale, Mortgage-backed securities	4,184,000	3,897,000
U.S. Small Business Administration securities
Amortized Cost
Securities available-for-sale, Due after one year through five years	2,553,000	2,485,000
Securities available-for-sale, Due after five years through ten years	4,461,000	4,420,000
Securities available-for-sale, Due after ten years	7,505,000	9,478,000
Securities available-for-sale, Subtotal	14,519,000	16,383,000
Securities available-for-sale, Total	14,519,000	16,383,000
Fair Value
Securities available-for-sale, Due after one year through five years	2,407,000	2,507,000
Securities available-for-sale, Due after five years through ten years	3,996,000	4,515,000
Securities available-for-sale, Due after ten years	6,448,000	9,530,000
Securities available-for-sale, Subtotal	12,851,000	16,552,000
Securities available-for-sale, Total	$ 12,851,000	$ 16,552,000