v3.3.1.900
Note 16 - Income Taxes (Details) - USD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Dec. 31, 2013
Note 16 - Income Taxes (Details) [Line Items]      
Income Tax Expense (Benefit) $ 0 $ 0 $ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   34.00%  
Valuation Allowance as Percentage of Deferred Tax Asset 100.00% 100.00%  
Deferred Tax Assets, Operating Loss Carryforwards, Domestic   $ 75,200,000  
Deferred Tax Assets, Operating Loss Carryforwards, State and Local   73,100,000  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount   $ 650,000 1,100,000
Change in Control Ownership Threshold   50.00%  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense   $ 0  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate   128,000 $ 128,000
Domestic Tax Authority [Member]      
Note 16 - Income Taxes (Details) [Line Items]      
Deferred Tax Assets, Tax Credit Carryforwards, Research   361,000  
State and Local Jurisdiction [Member]      
Note 16 - Income Taxes (Details) [Line Items]      
Deferred Tax Assets, Tax Credit Carryforwards, Research   $ 231,000