Quarterly report pursuant to Section 13 or 15(d)

Property, Plant, and Equipment - Additional Information (Details)

v3.20.4
Property, Plant, and Equipment - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Property Plant And Equipment [Abstract]        
Depreciation expense $ 342,000 $ 412,000 $ 689,000 $ 827,000