XML 51 R40.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 5 - Derivative Instruments and Hedging Activities - Effects of Derivative Instruments on Income and Other Comprehensive Income (OCI) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Operating Expense [Member]        
Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing) $ (47,242)
Amount of Gain or (Loss) Recognized in OCI, Net of Tax, on Derivative (Effective Portion)
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) 23,595 (88,441) 128,950 (460,830)
Cost of Sales [Member]        
Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Amount of Gain or (Loss) Recognized in OCI, Net of Tax, on Derivative (Effective Portion) 125,343 106,631 230,952 990,151
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) $ 3,742 $ (36,075) $ 24,870 $ (142,891)