Note J - Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Quoted prices		Significant
	in active		other
	markets for		observable		Significant
	identical		remaining		unobservable
	assets (Level 1)		inputs (Level 2)		inputs (Level 3)		Total
Assets:
Cash and cash equivalents	$	67,428	$	—	$	—	$	67,428
Restricted cash		11,705		—		—		11,705
Total assets	$	79,133	$	—	$	—	$	79,133
Liabilities:
Bank acceptance payable		—	$	19,259		—	$	19,259
Convertible senior notes		—		148,625		—		148,625
Total liabilities	$	—	$	167,884	$	—	$	167,884

	Quoted prices		Significant
	in active		other
	markets for		observable		Significant
	identical		remaining		unobservable
	assets (Level 1)		inputs (Level 2)		inputs (Level 3)		Total
Assets:
Cash and cash equivalents	$	45,366	$	—	$	—	$	45,366
Restricted cash		9,731		—		—		9,731
Note receivable		—		219		—		219
Total assets	$	55,097	$	219	$	—	$	55,316
Liabilities:
Bank acceptance payable		—	$	15,482		—	$	15,482
Convertible senior notes		—		76,519		—		76,519
Total liabilities	$	—	$	92,001	$	—	$	92,001