Note 6 - Trade Accounts Receivable and Allowance for Doubtful Accounts (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	December 31,			December 31,
	2022			2021
Trade accounts receivable, current	$	5,541		$	6,393
Trade accounts receivable, long-term		37			186
Allowance for doubtful accounts		(114	)		(25	)
Trade accounts receivable, net	$	5,464		$	6,554
Unpaid deferred revenue included in trade accounts receivable	$	2,183		$	1,891

Schedule of Accounts Receivable By Major Customers By Reporting Segments [Table Text Block]

	December 31,			December 31,
	2022			2021
Company A		55	%		43	%
Company B		*			15	%
Company C		*			11	%