Annual report pursuant to Section 13 and 15(d)

ACCOUNTS RECEIVABLE

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ACCOUNTS RECEIVABLE
 12 Months Ended
Dec. 31, 2021
Receivables [Abstract]  
ACCOUNTS RECEIVABLE ACCOUNTS RECEIVABLE
Accounts receivable at December 31 consists of:
(In thousands) 2021 2020
Trade Accounts Receivable $ 84,681  $ 78,577 
Unbilled Recoverable Costs and Accrued Profits 25,941  17,697 
Total Receivables, Gross 110,622  96,274 
Less Allowance for Estimated Credit Losses (3,183) (3,218)
Total Receivables, Net $ 107,439  $ 93,056 
The following table provides a roll-forward of the allowance for estimated credit losses that is deducted from accounts receivable to present the net amount expected to be collected at December 31:
(In thousands)
Balance at December 31, 2019
 $ 3,559 
Bad Debt Expense, Net of Recoveries 1,913 
Write-off Charges Against the Allowance and Other Adjustments (2,254)
Balance at December 31, 2020
 $ 3,218 
Bad Debt Expense, Net of Recoveries 90 
Write-off Charges Against the Allowance and Other Adjustments (125)
Balance at December 31, 2021
 $ 3,183