Note 5 - Carrying Value of Goodwill by Reportable Segments (Details) - USD ($)		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill	$ 88,000,000	$ 88,000,000	$ 88,000,000	$ 96,000,000
Impairment	0	0	(8,000,000)
Print Systems [Member]
Goodwill [Line Items]
Goodwill	56,000,000	56,000,000	56,000,000	56,000,000
Micro 3D Printing and Packaging [Member]
Goodwill [Line Items]
Goodwill	20,000,000	20,000,000	20,000,000	26,000,000
Impairment			(6,000,000)
Software and Solutions [Member]
Goodwill [Line Items]
Goodwill	6,000,000	6,000,000	6,000,000	6,000,000
Consumer and Film [Member]
Goodwill [Line Items]
Goodwill	$ 6,000,000	$ 6,000,000	6,000,000	6,000,000
Intellectual Property Solutions [Member]
Goodwill [Line Items]
Goodwill				$ 2,000,000
Impairment			$ (2,000,000)