Annual report pursuant to Section 13 and 15(d)

Schedule II - Valuation and Qualifying Accounts

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Schedule II - Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2021
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, 2021
Current expected credit losses on receivables and contract assets $ $ $ —  $ —  $
Deferred tax asset valuation allowance 190  (127) —  —  63 
Year Ended December 31, 2020
Current expected credit losses on receivables and contract assets $ —  $ $ —  $ —  $
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