BORROWINGS - Remaining contractual maturity of the repurchase agreements (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	$ 24,082
U.S. Treasury and/or agency securities [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	24,082
Overnight and Continuous [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	24,082
Overnight and Continuous [Member] | U.S. Treasury and/or agency securities [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	24,082
Upto 30 Days [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Upto 30 Days [Member] | U.S. Treasury and/or agency securities [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
30 to 90 Days [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
30 to 90 Days [Member] | U.S. Treasury and/or agency securities [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Greater than 90 Days [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Greater than 90 Days [Member] | U.S. Treasury and/or agency securities [Member]
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	$ 0