Note 13 - Stock-based Compensation Plan - Allocation of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Allocation of Share-based Compensation Expense	$ 1,857	$ 2,047
Restricted Stock [Member]
Allocation of Share-based Compensation Expense	1,857	2,047
Restricted Stock [Member] | Cost of Sales [Member]
Allocation of Share-based Compensation Expense	144	104
Restricted Stock [Member] | Selling and Marketing Expense [Member]
Allocation of Share-based Compensation Expense	50	41
Restricted Stock [Member] | Research and Development Expense [Member]
Allocation of Share-based Compensation Expense	29	19
Restricted Stock [Member] | General and Administrative Expense [Member]
Allocation of Share-based Compensation Expense	$ 1,634	$ 1,883