Note 1 - Operations and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

	Years Ended December 31,
(in thousands)	2024		2023
Cash	$	111	$	95
Restricted cash		150		150
Total cash and restricted cash	$	261	$	245

Disaggregation of Revenue [Table Text Block]

	Three Months Ended				Year Ended
(in thousands)	December 31, 2024		December 31, 2023		December 31, 2024		December 31, 2023
Domestic	$	7,351	$	8,972	$	33,532	$	31,500
International		2,417		3,366		11,385		12,129
Total Revenue	$	9,768	$	12,338	$	44,917	$	43,629

Schedule of Property, Plant and Equipment Estimated Useful Life [Table Text Block]

Buildings and improvements (years)	5 - 40
Machinery and equipment (years)	5 - 20
Tooling (years)	3 - 5