Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.20.2
Income Taxes - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Sep. 30, 2019
Income Tax Contingency [Line Items]          
Income tax expense $ 90,000 $ 707,000 $ 297,000 $ 1,621,000  
Income tax expense from discontinued operations   $ (1,300,000) (47,000) $ (1,200,000)  
Unrecognized tax benefits that would impact effective tax rate 1,200,000   1,200,000   $ 1,300,000
Accrual for potential interest and penalties $ 800,000   $ 800,000   $ 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