ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Other long-term liabilities	$ 3,986	$ 5,026
Uncertain income tax positions recorded in noncurrent liabilities		200
Accrued lease restoration costs	400	300
Severance Costs	800	600
Accrued benefit liability	213	220
Operating Lease, Liability, Noncurrent	2,600	$ 4,200
Foreign Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accrued benefit liability	$ 200