Current report filing

Note 18 - Income Taxes (Details Textual)

v3.8.0.1
Note 18 - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Deferred Tax Assets, Gross $ 79,102,014 $ 74,217,057  
Net Income (Loss) Attributable to Parent (14,309,031) (27,563,535) $ (35,726,669)
Cardiosonix [Member] | Subsidiaries [Member]      
Net Income (Loss) Attributable to Parent (13,000) (11,000) $ (15,000)
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]      
Operating Loss Carryforwards 193,270,891 177,600,000  
Operating LossCarryforwardsStockBasedCompensation 15,300,000 15,300,000  
Net Operating Loss Carryforwards Expired in Period 0 0  
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | Research Tax Credit Carryforward [Member]      
Tax Credit Carryforward, Amount 9,363,081 9,100,000  
Net Tax Credit Carryforwards Expired in Period 0 0  
State and Local Jurisdiction [Member]      
Operating Loss Carryforwards $ 28,200,000 24,700,000  
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]      
Operating Loss Carryforwards, Expiration Date Dec. 31, 2032    
Foreign Tax Authority [Member] | Israel Tax Authority [Member] | Cardiosonix [Member] | Subsidiaries [Member]      
Operating Loss Carryforwards $ 7,700,000 $ 7,600,000