Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.20.4
Income Taxes - Additional Information (Details) - USD ($)
3 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Sep. 30, 2020
Income Tax Contingency [Line Items]      
Income tax expense $ 80,000 $ 41,000  
Benefit related to reversal of previously recorded uncertain tax positions 300,000    
Income tax expense from discontinued operations   $ 19,000  
Unrecognized tax benefits that would impact effective tax rate 900,000   $ 1,200,000
Accrual for potential interest and penalties $ 600,000   $ 800,000
Minimum      
Income Tax Contingency [Line Items]      
Number of years open for tax examinations 3 years    
Maximum      
Income Tax Contingency [Line Items]      
Number of years open for tax examinations 5 years