Note 2 - Revenues and Product Costs (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	Customer		Deferred
	Deposits		Revenue
Balance at January 1, 2023	$	-	$	333
Additions, net		1,002		407
Transfer to revenue		-		(196	)
Balance at December 31, 2023	$	1,002	$	544
Current portion	$	1,002	$	407
Long-term portion	$	-	$	137