Accounts Receivables

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Accounts Receivables

Accounts Receivables

Billed receivables are amounts billed and due from our customers and are reported within accounts receivable, net of reserve on the consolidated balance sheets. The portion of the payments retained by the customer until final contract settlement is not considered a significant financing component due to the intent of the retainage being the customer’s protection with respect to full and final performance under the contract.

The components of accounts receivable, net consisted of the following (in thousands):

	December 31,
	2021		2020
Billed accounts receivable	$	18,586	$	12,060
Unbilled receivables	41,374		19,161
Allowance for doubtful accounts	(116)		(308)
Accounts receivable, net	$	59,844	$	30,913

The activities in the allowance for doubtful accounts are set forth below (in thousands):

	Balance Beginning of Year		Bad Debt Expenses (1)		Write-offs / Recoveries (2)		Balance End of Year
Year Ended December 31, 2021	$	308	$	7	$	(199)	$	116
Year Ended December 31, 2020	$	720	$	(412)	$	—	$	308
Year Ended December 31, 2019	$	306	$	414	$	—	$	720

(1)Accounts receivable reserves and reversal of allowance for subsequent collections, net

(2)Accounts receivable written-off and subsequent recoveries, net

On July 15, 2016, the Company entered into an accounts receivable purchase agreement under which the Company could sell certain accounts receivable (balance not to exceed $10 million) to a third party, or the “Factor”, without recourse to the Company, with an availability period through June 30, 2022. There were no accounts receivable sold during 2021 and 2020, respectively. As of December 31, 2021 and 2020, there were no outstanding sold accounts receivable.