Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

General (Narrative) (Details) - Paycheck Protection Program Loan [Member] - USD ($) $ in Thousands	Nov. 03, 2020	May 30, 2020
Line of Credit Facility [Line Items]
Principal loan amount		$ 6,900
Yankee Equipment Systems, Inc [Member]
Line of Credit Facility [Line Items]
Loan obligation	$ 916