Note 10 - Subsequent Events (Details) (Subsequent Event [Member], FineLine Prototyping, Inc. [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Apr. 30, 2014
Subsequent Event [Member] | FineLine Prototyping, Inc. [Member]
Note 10 - Subsequent Events (Details) [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Business Combination, Consideration Transferred	$ 37
Payments to Acquire Businesses, Gross	34
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 3