Note 10 - Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	Three - m onth p eriod e nded March 31,
	20 20			201 9
Accrued warranty obligations – beginning	$	195		$	95
Accruals for warranties issued		27			5
Settlements made		(12	)		(5	)
Accrued warranty obligations – ending	$	210		$	95