Note 3 - Business Combinations - Acquisitions (Details) - USD ($) $ in Thousands	Mar. 02, 2019	Dec. 21, 2017
Goodwill	$ 16,043
Acquisition of Lane Venture [Member]
Accounts receivable, net of reserve (Note 5)		$ 1,507
Inventory, net of reserve (Note 6)		3,718
Prepaid expenses and other current assets		37
Intangible assets		7,360
Total identifiable assets acquired		12,622
Accounts payable		(357)
Other accrued liabilities		(852)
Total liabilities assumed		(1,209)
Net identifiable assets acquired		11,413
Goodwill		4,143
Total net assets acquired		$ 15,556