Note 15 - Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	For the Nine Months Ended September 30,
	2020			2019
Balance, beginning of period	$	163		$	226
Reduction of warranty reserve		(96	)		(11	)
Warranty claims		(6	)		(22	)
Other adjustments		(19	)		(10	)
Balance, end of period	$	42		$	183

Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]

	For the Nine Months Ended September 30,
	2020			2019
Balance at beginning of period	$	127		$	190
Bad debt expense		130			(30	)
Write-offs		(47	)		—
Other adjustments		(36	)		—
Balance at end of period	$	174		$	160