Disclosures about Fair Value of Assets and Liabilities - Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosures about Fair Value of Assets and Liabilities
Impaired loans (collateral dependent)	$ 4,059	$ 1,570
Level 3
Disclosures about Fair Value of Assets and Liabilities
Impaired loans (collateral dependent)	$ 4,059	$ 1,570

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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