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Notes Receivable - Summary of Notes Receivable (Details) - Unsecured Notes Receivable - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]    
Officers, employees and affiliated entities - Interest accrues annually at rates ranging from 3.25% - 5.5%. The notes receivable mature through December 2021. $ 2,405 $ 2,479
Unrelated third party - Currently no interest is being accrued on this note. The note receivable matures in December 2023. 903 903
Total: 3,308 3,382
Less: current portion    
Officers, employees and affiliates (1,116) (1,182)
Noncurrent portion $ 2,192 $ 2,200