Restricted Cash

12 Months Ended

Dec. 31, 2021

Cash And Cash Equivalents [Abstract]

Restricted Cash

3. Restricted Cash

As of December 31, 2021, the balance of $10,905 (December 31, 2020 – $9,196) represents cash collateral held as guarantee for export sales contracts, which are restricted until April 2023 the latest.

	December 31,
	2021		2020
Restricted Cash	$	10,905	$	9,196
Total Restricted Cash	$	10,905	$	9,196