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Debt (Tables)
 9 Months Ended
Sep. 30, 2021
Debt Disclosure [Abstract]  
Schedule of Carrying Value of Debt
The Company’s carrying value of debt at September 30, 2021 and December 31, 2020 consisted of the following (in thousands):
September 30,
2021		December 31,
2020
Unsecured promissory note$— $1,080 
Secured term note, net of debt issuance costs6,598 — 
Secured term note payable - related party
— 1,077 
Secured promissory note - related party
3,498 5,000 
Insurance and other notes payable
1,554 714 
Less: amounts due within one year
(3,959)(4,463)
Total long-term debt
$7,691 $3,408 
Schedule Of Interest Expense On Debt
During the nine months ended September 30, 2021 and 2020, the Company recorded interest expense on debt as follows (in thousands):
September 30,
2021		September 30,
2020
Unsecured promissory note$— $4 
Secured term note$176 $— 
Secured term note payable - related party
22 57 
Secured promissory note - related party
409 224 
Insurance and other notes payable
41 24 
Total interest expense on debt$648 $309