Note 1 - Significant Accounting Policies - Disaggregated Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue	$ 32,779	$ 22,335
Facilities Segment [Member]
Revenue	9,257	15,186
Facilities Segment [Member] | Maintenance [Member]
Revenue	4,148	4,851
Facilities Segment [Member] | Equipment Sales [Member]
Revenue	545	2,860
Facilities Segment [Member] | Deployment and Other Services [Member]
Revenue	4,564	7,475
System Integration Services Segment [Member]
Revenue	23,522	7,149
System Integration Services Segment [Member] | Integration Services [Member]
Revenue	6,382	7,149
System Integration Services Segment [Member] | Reseller Services [Member]
Revenue	$ 17,140