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Orange Grove Promissory Notes (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 02, 2020
Short-term Debt [Line Items]            
Face amount           $ 2,990
Interest expense $ 175 $ 149 $ 518 $ 651 $ 466  
Promissory note            
Short-term Debt [Line Items]            
Outstanding amount         418  
Interest expense       $ 19 11  
Promissory note | Orange Grove Fleet Solutions, LLC            
Short-term Debt [Line Items]            
Face amount         $ 515  
Membership interest         80.00%  
Fixed interest rate per annum         8.00%