Note 5 - Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Property, Plant and Equipment [Table Text Block]

	December 31,
	2022			2021
Equipment held by customers and field sales personnel	$	2,566		$	2,362
Machinery and equipment		1,372			1,391
Computer software		122			122
Computer equipment		200			173
Furniture and fixture		78			78
Leasehold improvements		320			320
Total property and equipment, gross		4,658			4,446
Less: Accumulated depreciation and amortization		(3,956	)		(4,351	)
Total property and equipment, net	$	702		$	95