Quarterly report pursuant to Section 13 or 15(d)

Lease Obligations - Summary of Components of Leasing Costs and Rent (Details)

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Lease Obligations - Summary of Components of Leasing Costs and Rent (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Leases [Abstract]    
Operating lease costs $ 261 $ 65
Short-term lease costs 7 76
Variable lease costs 41 1
Total rent expense $ 309 $ 142