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Capital Notes (Narrative) (Details) - USD ($)		9 Months Ended
	Sep. 24, 2020	Sep. 30, 2020	Jul. 08, 2020	Apr. 13, 2020
Debt Instrument [Line Items]
Proceeds used to pay off debt		$ 5,000,000
2020 Offering [Member]
Debt Instrument [Line Items]
Capital notes, interest rate			3.25%
Capital notes, maturity date		Sep. 30, 2025
Principal notes				$ 10,050,000
Full or partial payment date		Sep. 30, 2021
Capital Notes 4% Due 1/24/2022 [Member]
Debt Instrument [Line Items]
Capital notes, interest rate		4.00%
Capital notes, maturity date		Jan. 24, 2022
Proceeds used to pay off debt	$ 5,000,000

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Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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