Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Revenue (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
Revenue (Narrative) (Details) - USD ($)	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 0	$ 574,000	$ 709,000	$ 574,000
Redemption Of Non-Cash Credits [Member]
Disaggregation of Revenue [Line Items]
Consolidated revenue			400,000
Cash Purchases [Member]
Disaggregation of Revenue [Line Items]
Consolidated revenue			$ 300,000