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Note 2 - Supplemental Balance Sheet Information (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Financing Receivable, Past Due [Table Text Block]

		June 30, 2022 (unaudited)				December 31, 2021
Contract and other receivables		$	1,623			$	1,853
Allowance for doubtful accounts			(7	)			(7	)
Contracts and other receivables, net		$	1,616			$	1,846

Schedule of Inventory, Current [Table Text Block]

		June 30, 2022 (unaudited)				December 31, 2021
Raw materials		$	189			$	150
Reseller inventories			47				701
Reserve			(5	)			(4	)
Inventories, net		$	231			$	847

Schedule of Intangible Assets and Goodwill [Table Text Block]

		June 30, 2022 (unaudited)								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			$	(825	)		$	906			$	(780	)
Acquired software		$	234			$	(234	)		$	234			$	(234	)

Schedule of Goodwill [Table Text Block]

		June 30, 2022 (unaudited)				December 31, 2021
Facilities unit		$	643			$	643
Systems Integration unit			137				137
Total		$	780			$	780

Property, Plant and Equipment [Table Text Block]

		Estimated Useful Lives (years)					June 30, 2022 (unaudited)				December 31, 2021
Trade equipment			5				$	255			$	144
Leasehold improvements		2	-	5				725				725
Furniture and fixtures			7					16				16
Computer equipment and software			3					2,146				2,135
								3,142				3,020
Less accumulated depreciation								(2,873	)			(2,739	)
Property and equipment, net							$	269			$	281

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

		June 30, 2022 (unaudited)				December 31, 2021
Accounts payable		$	4,290			$	5,472
Legal Settlement			-				500
Accrued expenses			1,171				703
Compensation, benefits & related taxes			250				270
Other accrued expenses			39				71
Total accounts payable and accrued expenses		$	5,750			$	7,016

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