Note 2 - Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Revenue from External Customers by Products and Services [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2020			2019			2020			2019
Product sales	$	15,200		$	22,100		$	29,211		$	40,623
Freight and other		1,454			1,745			2,538			3,245
Less: sales returns		(250	)		(417	)		(397	)		(1,112	)
Total net sales	$	16,404		$	23,428		$	31,352		$	42,756