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Note 2 - Supplemental Balance-sheet Information (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Financing Receivable, Past Due [Table Text Block]

		December 31, 2022				December 31, 2021
Contract and other receivables		$	2,752			$	1,853
Allowance for doubtful accounts			(7	)			(7	)
		$	2,745			$	1,846

Schedule of Inventory, Current [Table Text Block]

		December 31, 2022				December 31, 2021
Materials and component parts		$	406			$	150
Reseller inventories			460				701
Reserve			(4	)			(4	)
Inventories, net		$	862			$	847

Schedule of Intangible Assets and Goodwill [Table Text Block]

		December 31, 2022								December 31, 2021
		Gross								Gross
		Carrying				Accumulated				Carrying				Accumulated
		Amount				Amortization				Amount				Amortization
Intangible assets not subject to amortization:
Goodwill		$	780				-			$	780				-
Intangible assets subject to amortization:
Customer relationships		$	906			$	(870	)		$	906			$	(780	)
Acquired software		$	234			$	(234	)		$	234			$	(234	)

Schedule of Goodwill [Table Text Block]

		December 31, 2022				December 31, 2021
Facilities unit		$	643			$	643
Systems Integration unit			137				137
Total		$	780			$	780

Property, Plant and Equipment [Table Text Block]

		Estimated
		Useful				December 31,
		Lives				2022				2021
		(years)
Trade equipment			5			$	322			$	144
Leasehold improvements		2	–	5			964				725
Furniture and fixtures			7				36				16
Computer equipment and software			3				2,233				2,135
							3,555				3,020
Less accumulated depreciation							(2,968	)			(2,739	)
Property and equipment, net						$	587			$	281

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

		December 31,
		2022				2021
Accounts payable		$	19,959			$	5,472
Legal settlement			-				500
Accrued expenses			494				703
Compensation, benefits and related taxes			1,102				270
Other accrued expenses			61				71
Total accounts payable and accrued expenses		$	21,616			$	7,016

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