Inventories

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Inventories

6. Inventories

	December 31,
	2020		2019
Raw materials	$	29,005	$	5,689
Work in progress		52,515		8,565
Finished goods		24,293		13,592
Total inventories	$	105,813	$	27,846

For the year ended December 31, 2020, the Company charged $1,697 of excessive fixed production overhead to cost of sales (2019 - $3,794, 2018 - $2,735).

For the year ended December 31, 2020, cost of sales includes $5,816 of inventory provision for products that are likely to expire before being sold (2019 - $ 651, 2018 - $2,529).