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Other Liabilities (Tables)
 9 Months Ended
Sep. 30, 2021
Other Liabilities Disclosure [Abstract]  
Other Liabilities
The following table summarizes other liabilities as of:
September 30,
2021		December 31,
2020
Other Liabilities, Current
Unearned insurance premiums$638 $256 
Other Liabilities
Unearned insurance premiums942 1,680 
Other long-term liabilities119 135 
Historic warrants liability— 144 
Other Liabilities, Long-term$1,061 $1,959