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BORROWED FUNDS AND SUBORDINATED DEBT - Long-term Borrowing (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Long-term Borrowing
Long-term borrowings	$ 102,787	$ 52,127
Federal Home Loan Bank of Pittsburgh
Long-term Borrowing
Long-term borrowings	102,787	52,127
Federal Home Loan Bank of Pittsburgh | Loans matured in 2020 with a weighted-average rate of 2.71%
Long-term Borrowing
Long-term borrowings	0	5,069
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2021 with a weighted-average effective rate of 1.36%
Long-term Borrowing
Long-term borrowings	26,124	6,000
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2022 with a weighted-average effective rate of 1.40%
Long-term Borrowing
Long-term borrowings	35,740	20,000
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2023 with a weighted-average effective rate of 1.44%
Long-term Borrowing
Long-term borrowings	27,750	20,500
Federal Home Loan Bank of Pittsburgh | Loans maturing in 2024 with a weighted-average effective rate of 1.06%
Long-term Borrowing
Long-term borrowings	12,683	0
Federal Home Loan Bank of Pittsburgh | Loan maturing in 2025 with a rate of 4.91%
Long-term Borrowing
Long-term borrowings	$ 490	$ 558

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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