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Fair Value - Schedule of assets measured at fair value on a nonrecurring basis (Details) - Fair Value, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Nonrecurring [Line Items]
Impaired loans	$ 1,396	$ 1,583
Discount Rate
Fair Value, Nonrecurring [Line Items]
Loans Receivable, Fair Value Disclosure, Impaired, Measurement Input	1000.00%
Minimum | Discount Rate
Fair Value, Nonrecurring [Line Items]
Loans Receivable, Fair Value Disclosure, Impaired, Measurement Input		20.00%
Maximum | Discount Rate
Fair Value, Nonrecurring [Line Items]
Loans Receivable, Fair Value Disclosure, Impaired, Measurement Input		75.00%

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- Definition

Loans Receivable, Fair Value Disclosure, Impaired

+ References

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- Definition

Loans Receivable, Fair Value Disclosure, Impaired, Measurement Input

+ References

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- Definition

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+ References

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