BORROWED FUNDS - Long-term Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Long-term Borrowing
Long-term borrowings	$ 62,347	$ 28,042
Loans maturing in 2023 with a weighted-average rate of 1.35%
Long-term Borrowing
Rate	1.35%	1.35%
Loans maturing in 2024 with a weighted-average rate of 2.89%
Long-term Borrowing
Rate	2.89%	2.89%
Loans maturing in 2025 with a weighted-average rate of 3.94%
Long-term Borrowing
Rate	3.94%	3.94%
Federal Home Loan Bank of Pittsburgh
Long-term Borrowing
Long-term borrowings	$ 62,347	$ 28,042
Federal Home Loan Bank of Pittsburgh | Loans matured in 2022
Long-term Borrowing
Long-term borrowings	0	15,452
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2023 with a weighted-average rate of 1.35%
Long-term Borrowing
Long-term borrowings	9,303	7,119
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2024 with a weighted-average rate of 2.89%
Long-term Borrowing
Long-term borrowings	29,813	5,099
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2025 with a weighted-average rate of 3.94%
Long-term Borrowing
Long-term borrowings	$ 23,231	$ 372