Note 9 - Significant Risk Concentrations (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Schedule of Rebate Credit [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Reductions to cost of revenue	$	2	$	26	$	232	$	236
Reductions to marketing expense		95		110		269		287