Note 4 - Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Property, Plant and Equipment [Table Text Block]

	December 31, 2021			December 31, 2020			Estimated Useful Life (in Years)
Machinery and equipment	$	42		$	38		5
Trade show booth		171			171		5
Office equipment		511			405		5
Leasehold improvements		380			380		Lesser of lease term or estimated useful life
		1,104			994
Accumulated depreciation		(673	)		(463	)
	$	431		$	531