Inventories, Net

6 Months Ended

12 Months Ended

Jun. 30, 2021

Dec. 31, 2020

Inventory Disclosure [Abstract]

INVENTORIES, NET

4. INVENTORIES, NET

Inventories consisted of the following:

	December 31, 2020		June 30, 2021
Work in process	$	22,167	$	21,090
Raw materials		17,451		20,223
Finished goods		5,350		14,087
Total	$	44,968	$	55,400

Provision for obsolete inventory at nil and $5,880 were recognized for the three months ended June 30, 2020 and 2021, respectively. Provision for obsolete inventory at $646 and $6,098 were recognized for the six months ended June 30, 2020 and 2021, respectively.

4. INVENTORIES, NET

Inventories consisted of the following:

	December 31, 2019		December 31, 2020
Work in process	$	27,854	$	22,167
Raw materials		17,201		17,451
Finished goods		12,249		5,350
Total	$	57,304	$	44,968

Provision for obsolete inventory at $13,622, $4,233 and $1,343 were recognized for the years ended December 31, 2018, 2019 and 2020, respectively.