Note 5 - Carrying Value of Goodwill by Reportable Segments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Balance	$ 12,000,000	$ 68,000,000
Impairment	0	(56,000,000)
Balance	12,000,000	12,000,000
Print Systems [Member]
Goodwill [Line Items]
Balance		56,000,000
Impairment		(56,000,000)
Software and Solutions [Member]
Goodwill [Line Items]
Balance	6,000,000	6,000,000
Impairment		0
Balance	6,000,000	6,000,000
Consumer and Film [Member]
Goodwill [Line Items]
Balance	6,000,000	6,000,000
Impairment		0
Balance	$ 6,000,000	$ 6,000,000