XML 53 R43.htm IDEA: XBRL DOCUMENT v3.5.0.2
Income Taxes - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Income Taxes [Line Items]        
Income tax expense (benefit) $ 189,000 $ 195,000 $ 370,000 $ 461,000
Revenue Commissioners, Ireland [Member]        
Income Taxes [Line Items]        
Ireland statutory tax rate, percent     12.50% 12.50%