XML 154 R126.htm IDEA: XBRL DOCUMENT v3.8.0.1
OTHER COMPREHENSIVE LOSS (Details Textual) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2009
Equity [Abstract]        
Gain on interest rate swaps $ 137,000 $ 281,000 $ 427,000 $ 1,400,000