Note L - Convertible Senior Notes (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Convertible Debt [Table Text Block]

	December 31, 2023
Principal	$	80,214
Unamortized debt issuance costs		(3,981	)
Net carrying amount	$	76,233

Interest Income and Interest Expense Disclosure [Table Text Block]

	Year ended December 31,
	2023			2022
Contractual interest expense	$	4,039		$	4,025
Amortization of debt issuance costs		849			826
Total interest cost	$	4,888		$	4,851
Effective interest rate		5.1	%		5.1	%