XML 75 R64.htm IDEA: XBRL DOCUMENT v3.8.0.1
Interest-Rate Swaps (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Interest rate swaps        
Derivative [Line Items]        
Net Gain or Loss recognized in earnings $ 0 $ 0 $ 0 $ 0