PLANT, PROPERTY AND EQUIPMENT, NET

12 Months Ended

Dec. 31, 2021

PLANT, PROPERTY AND EQUIPMENT, NET [Abstract]

PLANT, PROPERTY AND EQUIPMENT, NET

6. PROPERTY, PLANT AND EQUIPMENT, NET

Property, plant and equipment, net consisted of the following:

	December 31, 2021	December 31, 2020
Computer hardware and software	$ 20,824	$ 13,828
Furniture, fixture, and equipment	26	20
Total depreciable property and equipment	20,850	13,848
Less: accumulated depreciation	(11,711)	(6,738)
Depreciable property, net	9,139	7,110
Assets under development	6,763	738
Property, plant, and equipment, net	$ 15,902	$ 7,848

For the years ended December 31, 2021, 2020 and 2019, depreciation expense was $4,974, $3,360, and $2,057, respectively.