SIGNIFICANT ACCOUNTING POLICIES - Estimated useful lives (Details)	12 Months Ended
	Dec. 31, 2022
Office furniture and equipment | Minimum
SIGNIFICANT ACCOUNTING POLICIES
Estimated Useful Life	5 years
Office furniture and equipment | Maximum
SIGNIFICANT ACCOUNTING POLICIES
Estimated Useful Life	7 years
Assembly equipment
SIGNIFICANT ACCOUNTING POLICIES
Estimated Useful Life	7 years
Vehicles
SIGNIFICANT ACCOUNTING POLICIES
Estimated Useful Life	5 years
Leased devices
SIGNIFICANT ACCOUNTING POLICIES
Estimated Useful Life	9 months