Note 7 - Commitments (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Note 7 - Commitments (Details) [Line Items]
Operating Leases, Rent Expense	$ 323,000	$ 426,000	$ 1,000,000	$ 1,200,000
ResearchAndDevelopmentCosts			5,900,000
Guarantee of Indebtedness of Others [Member]
Note 7 - Commitments (Details) [Line Items]
Loss Contingency, Range of Possible Loss, Maximum	2,400,000		2,400,000
Loss Contingency, Estimate of Possible Loss	$ 2,200,000		$ 2,200,000