Note 2 - Revenue and Product Costs (Tables)

9 Months Ended

Sep. 30, 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		2		229
Transfer to revenue		-		(197	)
Balance at September 30, 2023	$	2	$	365
Current portion	$	2	$	189
Long-term portion	$	-	$	176