Annual report pursuant to Section 13 and 15(d)

Schedule II - Valuation and Qualifying Accounts

v3.20.4
Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
Balance at beginning of period Charged to costs and expenses Charged to other accounts Deductions Balance at end of period
Year Ended December 31, 2020
Allowance for credit losses or doubtful accounts on receivables and contract assets $ —  $ 7  $ —  $ —  $ 7 
Deferred tax asset valuation allowance 196  (6) —  —  190 
Year Ended December 31, 2019
Allowance for credit losses or doubtful accounts on receivables and contract assets $ 30  $ 16  $ —  $ (46) $ — 
Deferred tax asset valuation allowance 686  (490) —  —  196 
Year Ended December 31, 2018
Allowance for credit losses or doubtful accounts on receivables and contract assets $ 30  $ —  $ —  $ —  $ 30 
Deferred tax asset valuation allowance 806  (120) —  —  686