Accounts Receivable

12 Months Ended

Dec. 31, 2022

Receivables [Abstract]

Accounts Receivable

3.Accounts Receivable

Accounts receivable consisted of the following:

	December 31,
(table only in thousands)	2022			2021
Contract receivables	$	71,363		$	65,932
Trade receivables		15,943			12,537
Allowance for credit losses		(4,220	)		(3,478	)
Total accounts receivable	$	83,086		$	74,991

Balances billed, but not paid by customers under retainage provisions in contracts, amounted to approximately $1.6 million and $1.8 million at December 31, 2022 and 2021, respectively. Retainage receivables on contracts in progress are generally collected within a year or two subsequent to contract completion, and are recorded in either accounts receivable, net or deferred charges and other assets within the Consolidated Balance Sheets depending on timing of expected collection.

Provision for credit losses was $1.3 million, $0.7 million and $0.9 million during 2022, 2021 and 2020, respectively, while accounts charged to the allowance were $0.6 million, $0.3 million and $0.4 million during 2022, 2021 and 2020, respectively.