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Accrued Expenses (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Payroll and incentive compensation $ 2,722 $ 1,366
Real estate taxes 382 341
Current portion of operating lease liabilities 169 179
Other 314 310
Total accrued expenses $ 3,587 $ 2,196