XML 48 R37.htm IDEA: XBRL DOCUMENT v3.5.0.2
Note 4 - Derivative Instruments and Hedging Activities (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Forward Contracts [Member] | Designated as Hedging Instrument [Member]        
Derivative, Notional Amount $ 4,300,000   $ 4,300,000  
Forward Contracts [Member] | Not Designated as Hedging Instrument [Member]        
Derivative, Notional Amount   $ 26,400,000   $ 26,400,000
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments 20,114 (100,000)    
Derivative, Gain (Loss) on Derivative, Net     (300,000) (200,000)
Forward Contracts [Member]        
Derivative, Notional Amount 5,000,000 31,000,000 5,000,000 31,000,000
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments (39,401) $ (100,000)    
Derivative, Gain (Loss) on Derivative, Net     (100,000) $ (300,000)
Derivative, Notional Amount $ 4,952,500   $ 4,952,500