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Note 1 - Significant Accounting Policies - Disaggregated Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenue	$ 30,637	$ 27,410
Facilities Segment [Member]
Revenue	10,208	7,075
Facilities Segment [Member] | Maintenance [Member]
Revenue	3,668	3,540
Facilities Segment [Member] | Equipment Sales [Member]
Revenue	1,149	2,039
Facilities Segment [Member] | Deployment and Other Services [Member]
Revenue	5,391	1,496
System Integration Services Segment [Member]
Revenue	20,429	20,335
System Integration Services Segment [Member] | Integration Services [Member]
Revenue	7,186	5,668
System Integration Services Segment [Member] | Procurement Services [Member]
Revenue	$ 13,243	$ 14,667

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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