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Income Taxes - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 27, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Income Tax [Line Items]          
Loss before income taxes   $ (1,622,000) $ (2,083,000) $ (3,733,000) $ (4,151,000)
Effective tax rate for continuing operations   0.00% 0.00% 0.00% 0.00%
Federal statutory effective tax rate       21.00% 21.00%
Unrecognized tax benefits   $ 0 $ 0 $ 0 $ 0
CARES Act          
Income Tax [Line Items]          
Refundable tax credit due to AMT credits       $ 429,000  
CARES Act | Maximum          
Income Tax [Line Items]          
Percentage of refundable AMT credit 100.00%