Accounts receivable are recorded at the invoiced amount, do not require collateral and do not bear interest. The Company estimates an allowance for credit losses using the lifetime expected credit loss at each measurement date taking into account historical credit loss experience as well as forward-looking information in order to establish rates for each class of financial receivable with similar risk characteristics. Adjustments to this estimate are recognized in the statement of operations.

In order to manage and assess our risk, management maintains credit policies that include regular review of credit limits of individual receivables and systematic monitoring of aging of trade receivables and the financial wellbeing of our customers. In addition, we acquired trade credit insurance effective April 1, 2020. At September 30, 2022, approximately 83% of our trade accounts receivable are insured, relating to accounts receivables from counterparties deemed creditworthy by the insurer and excluding accounts receivable from government entities, which have arisen since April 1, 2020 when the trade credit insurance became effective.

Our trade balances are spread over a broad Construction Partner base, which is geographically dispersed. For the three months ended September 30, 2022 and 2021, no Construction Partner accounted for greater than 10% of revenue. No Construction Partner accounted for greater than 10% of revenue for the nine months ended September 30, 2022 and one Construction Partner accounted for $13.5 million of revenue for the nine months ended September 30, 2021, which is greater than 10% of total revenue. In addition, and where possible, we collect a 50% deposit on sales, excluding government and certain other clients.

The Company’s aged receivables were as follows:


	As at
	September 30,			December 31,
	2022			2021
Current		17,021			13,572
Overdue		2,658			621
		19,679			14,193
Less: expected credit losses		(126	)		(130	)
		19,553			14,063

No adjustment to our expected credit losses of $0.1 million was required for the nine months ended September 30, 2022. Receivables are generally considered to be past due when over 60 days old unless there is a separate payment arrangement in place for the collection of the receivable.

For the period ended September 30, 2022, the Company classified Other Receivables separately from Trade and Accrued Receivables on the balance sheet, as reconciled below:


	As at,
	September 30,			December 31,
	2022			2021
Trade and accrued receivables		19,679			14,193
Allowance for doubtful accounts		(126	)		(130	)
Accounts receivable		19,553			14,063
Sales tax receivable		289			196
Income taxes receivable		2			3,194
Government subsidies		7,141			-
Other receivables		577			87
Other receivables (reclassified on the balance sheet)		8,009			3,477
Total Trade and other receivables, as previously presented		27,562			17,540