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NATURE OF OPERATIONS - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue
Warranty costs	$ 764	$ 538	$ 1,392	$ 1,108
Product sales	42,316	55,098	85,497	106,885
Dealer commission, reimbursed dealer expenses and other similar costs	3,949	3,253	$ 6,573	6,252
Annual curtail payment period			2 years
Period required to pay off remaining principle balance			3 years
Revenue from contract with customer product and service benchmark | Customer concentration risk | Pertaining to independent third parties
Disaggregation of Revenue
Product sales	$ 3,886	$ 2,495	$ 9,534	$ 4,471
Concentration risk percentage	9.60%	4.50%	11.80%	4.20%
Revenue from contract with customer product and service benchmark | Customer concentration risk | Another independent third party and affiliates
Disaggregation of Revenue
Product sales	$ 480	$ 3,296	$ 2,449	$ 6,194
Concentration risk percentage	1.20%	6.00%	3.00%	5.80%
Minimum
Disaggregation of Revenue
Term of lease agreement	96 months		96 months
Maximum
Disaggregation of Revenue
Term of lease agreement	120 months		120 months

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Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.

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