Trade and Other Receivables

12 Months Ended

Dec. 31, 2017

Trade and Other Receivables [Abstract]

Trade and Other Receivables

13.  Trade and other receivables

As at December 31,	2017		2016
Trade receivables	$	77,870	$	45,317
Consumption taxes receivable		13,592		5,575
Other receivables		643		2,087
	$	92,105	$	52,979

Trade receivables are generally secured by the equipment that they relate to as it is Company policy that equipment is not released until payment has been collected. Trade receivables are due for settlement within three to seven days of the date of sale, after which they are interest bearing. Other receivables are unsecured and non-interest bearing.

As at December 31, 2017, there were $5,443,000 of impaired receivables that have been provided for in the balance sheet because they are over six months old, or specific situations where recovering the debt is considered unlikely (December 31, 2016: $6,581,000).

Consumption taxes receivable are deemed fully recoverable unless disputed by the relevant tax authority. The other classes within trade and other receivables do not contain impaired assets.