Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Income Taxes (Details Textual)

v3.5.0.2
Note 11 - Income Taxes (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Jun. 30, 2016
Sep. 30, 2016
Sep. 30, 2015
M&EC [Member]          
Income Tax Expense (Benefit)     $ (3,203,000) $ (3,203,000)  
Income Tax Expense (Benefit) $ 37,000 $ 53,000   $ (3,093,000) $ 124,000
Effective Income Tax Rate Reconciliation, Percent (2.80%) 3.50%   19.20% 42.90%