SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted cash		$ 100,000	$ 100,000
Provisions for doubtful accounts		0	0
Revenues		424,000	477,000
Revenue reserve accrual		2,250,000	2,695,000
Employee retention tax credit			1,300,000
Proceeds from employee retention tax credit	$ 1,300,000
Other liabilities		$ 1,313,000	$ 0