Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities - Product Maintenance and Warranty (Details)

v3.20.2
Accrued Liabilities - Product Maintenance and Warranty (Details) - Warranty - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2020
Accrued Liabilities, Rollforward [Roll Forward]      
Beginning balance $ 229 $ 350  
Additions for estimated future expense 83 156  
Incurred costs (76) (270)  
Closing balance 236 236  
Current portion     $ 206
Long-term portion     30
Total $ 236 $ 236 $ 236