Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policy Information (Details)

v3.21.2
Basis of Presentation and Accounting Policy Information (Details) - USD ($)
3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
Mar. 31, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Cash and cash equivalents $ 41,052,000 $ 48,229,000 $ 40,124,000  
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows 43,388,000 51,016,000 $ 42,450,000 $ 46,007,000
COVID-19        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Canadian emergency wage subsidy, amount 939,000 2,417    
Prepaid Expenses and Other Current Assets        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows 1,968,000 2,438,000    
Other Assets        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows $ 368,000 $ 349,000