SECURITIES - Summary of amortized cost and fair value of debt securities shown by contractual maturity (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Amortized Cost
Due in one year or less	$ 5,420
Due from one year to five years	97,836
Due from five to ten years	55,726
Due after ten years	16,517
Mortgage-backed and asset-backed securities	214,814
Total	390,313
Estimated Fair Value
Due in one year or less	5,440
Due from one year to five years	95,474
Due from five to ten years	54,965
Due after ten years	16,182
Mortgage-backed and asset-backed securities	203,553
Total	375,614
Amortized Cost
Due from one year to five years	6,058
Due from five to ten years	21,780
Due after ten years	2,000
Total	29,838
Estimated Fair Value
Due after ten years	5,594
Due from five to ten years	20,410
Due after ten years	1,989
Total	$ 27,993