Increase for accrued, but unpaid interest on the debt instrument for the period.

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

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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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Amount of the required periodic payments applied to interest.

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Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The amount for notes payable (written promise to pay), due to related parties.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

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Notes payable (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Proceeds from issuance of convertible notes payable with related parties				$ 2,000
2018 Related Notes and Reorg. Convertible Notes [Member]
Debt Instrument [Line Items]
Notes Payable, Related Parties							$ 2,000
Debt Instrument Interest Rate Stated Percentage							5.00%
Interest Expense, Debt			$ 100	100
2019 Executive Note [Member]
Debt Instrument [Line Items]
Notes Payable, Related Parties						$ 100
Debt Instrument Interest Rate Stated Percentage						5.00%
Notes Payable, Airplane [Member]
Debt Instrument [Line Items]
Notes Payable, Related Parties					$ 11,500
Debt Instrument Interest Rate Stated Percentage					3.40%
Interest Expense, Debt	$ 100	$ 100	200	$ 200
Debt Instrument Periodic Payment Interest			100
Debt Instrument Periodic Payment Terms Balloon Payment To Be Paid	9,400		9,400
Payments Of Debt Issuance Costs			300
Debt Instrument Increase Accrued Interest			100
Paycheck Protection Program [Member]
Debt Instrument [Line Items]
Notes Payable, Related Parties	$ 300		$ 300