Note 7 - Assets Held for Sale (Details Textual) $ in Thousands, RM in Millions	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2018 MYR (RM)	Dec. 31, 2017 USD ($)
Proceeds from Sale of Property, Plant, and Equipment, Total	$ 607		$ 274
Impairment of Long-Lived Assets to be Disposed of	819		(65)
Malaysia Facility [Member]
Purchase and Sale Agreement, Purchase Price for Property, Plant and Equipment	6,050	RM 25.0
Proceeds from Sale of Property, Plant, and Equipment, Total	5,336	RM 22.5
Impairment of Long-Lived Assets to be Disposed of	$ 819		$ 65