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BORROWED FUNDS - Long-term Borrowing (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Long-term Borrowing
Long-term borrowings	$ 44,325	$ 54,608
Federal Home Loan Bank of Pittsburgh
Long-term Borrowing
Long-term borrowings	44,325	54,608
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2021 with a weighted-average effective rate of 1.31%
Long-term Borrowing
Long-term borrowings	$ 16,047	$ 26,098
Rate	1.17%	1.17%
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2022 with a weighted-average rate of 0.60%
Long-term Borrowing
Long-term borrowings	$ 15,568	$ 15,682
Rate	0.60%	0.60%
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2023 with a weighted-average rate of 0.73%
Long-term Borrowing
Long-term borrowings	$ 7,172	$ 7,224
Rate	0.73%	0.73%
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2024 with a weighted-average rate of 0.75%
Long-term Borrowing
Long-term borrowings	$ 5,118	$ 5,137
Rate	0.75%	0.75%
Federal Home Loan Bank of Pittsburgh | Loan maturing in 2025 with a rate of 4.91%
Long-term Borrowing
Long-term borrowings	$ 420	$ 467
Rate	4.91%	4.91%

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The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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