BALANCE SHEET COMPONENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unbilled receivables - non-current	$ 8,983	$ 1,069
Goodwill, carrying amount	14,953	15,029	$ 14,123
Accounts Receivable
Unbilled receivables	23,000	16,400
DFI Test Equipment
Depreciation and amortization	$ 3,600	$ 5,000	$ 5,500