Note 4 - Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Property, Plant and Equipment [Table Text Block]

	March 31,			December 31,
	2023			2022			Estimated Useful Life
Machinery and equipment	$	41		$	41		5 years
Trade show booth		202			202		5 years
Office equipment		539			539		5 years
Leasehold improvements		254			254		Lesser of lease term or estimated useful life
		1,036			1,036
Accumulated depreciation		(767	)		(725	)
	$	269		$	311