Note 4 - Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Note 4 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	$ 208
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	115
Unrecognized Tax Benefits	$ 2.4
Domestic Tax Authority [Member]
Note 4 - Income Taxes (Details) [Line Items]
Open Tax Period	3 years
Domestic Tax Authority [Member] | Minimum [Member]
Note 4 - Income Taxes (Details) [Line Items]
Open Tax Year	2010
Domestic Tax Authority [Member] | Maximum [Member]
Note 4 - Income Taxes (Details) [Line Items]
Open Tax Year	2013
State and Local Jurisdiction [Member]
Note 4 - Income Taxes (Details) [Line Items]
Open Tax Period	4 years
State and Local Jurisdiction [Member] | Minimum [Member]
Note 4 - Income Taxes (Details) [Line Items]
Open Tax Year	2009
State and Local Jurisdiction [Member] | Maximum [Member]
Note 4 - Income Taxes (Details) [Line Items]
Open Tax Year	2013