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Fair Value Measurements And Fair Values Of Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Derivative liabilities	$ 17,000	$ 40,000
Total liabilities	0
Assets, Level 1 to Level 2 Transfers	0
Liabilities, Level 1 to Level 2 Transfers	0
Partial charge-offs on impaired loans	0
Fair Value, Nonrecurring [Member]
Assets, Fair Value Disclosure	$ 0	$ 5,474,000

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- Definition

Charge-offs On Impaired Loans

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Fair value of financial and nonfinancial obligations.

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