ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - EPS, REVENUE RECOGNITION, CONTRACT BALANCES AND COSTS AND WARRANTY RESERVE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Property, Plant and Equipment [Line Items]
Potentially dilutive shares excluded from computation of diluted earnings per share due	17,700,000	1,890,000
Revenue recognized which was previously deferred	$ 2,200	$ 2,500	$ 5,800	$ 4,400
Deferred commissions related amortization			$ 274
Stock options
Property, Plant and Equipment [Line Items]
Potentially dilutive shares excluded from computation of diluted earnings per share due			7,200,000	6,700,000
Warrant
Property, Plant and Equipment [Line Items]
Potentially dilutive shares excluded from computation of diluted earnings per share due			10,800,000	265,000
Converted preferred stock
Property, Plant and Equipment [Line Items]
Potentially dilutive shares excluded from computation of diluted earnings per share due			17,800,000	17,800,000
Minimum
Property, Plant and Equipment [Line Items]
Period fees are due for adjustable rebate contracts			30 days
Maximum
Property, Plant and Equipment [Line Items]
Period fees are due for adjustable rebate contracts			60 days
Non-interactive projectors
Property, Plant and Equipment [Line Items]
Hardware maintenance services terms (in months)			60 months