Annual report pursuant to Section 13 and 15(d)

Schedule II - Valuation And Qualification Accounts (Details)

v3.20.4
Schedule II - Valuation And Qualification Accounts (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Balance at Beginning of Period $ 4,788 $ 371 $ 865
Charges to Expense 1,274 4,566 310
Deductions (2,203) (149) (804)
Balance at End of Period 3,859 4,788 371
Doubtful Accounts      
Balance at Beginning of Period 0 7 29
Charges to Expense 0 (7) 7
Deductions 0 0 (29)
Balance at End of Period 0 0 7
Inventory      
Balance at Beginning of Period 4,788 364 836
Charges to Expense 1,274 4,573 303
Deductions (2,203) (149) (775)
Balance at End of Period $ 3,859 $ 4,788 $ 364