Note 4 - Purchased Intangible Assets and Goodwill - Asset Impairments (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Goodwill		$ 45,981
Purchased intangible assets - net		900
Operating lease right-of-use assets		5,300
Total asset impairments		65,152
Latin America Segment [Member]
Goodwill		45,981
EMEA Segment [Member]
Purchased intangible assets - net	$ 900	900
Property, plant and equipment - net		12,956
Operating lease right-of-use assets		$ 5,315