Note 2 - Significant Accounting Policies and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Disaggregation of Revenue [Table Text Block]

Net Revenue	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands)	2021		2020		2021		2020
Software and royalties	$	40	$	587	$	301	$	780
Hardware and consumables		20		13		76		75
Services		85		1,258		98		1,274
Maintenance		633		613		1,977		1,870
Total revenue	$	778	$	2,471	$	2,452	$	3,999