XML 23 R31.htm IDEA: XBRL DOCUMENT v2.4.1.9
Equity Method Investment (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]      
Percentage of owned joint venture Investment in nonconsolidated affiliate 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage    
Investment in unconsolidated affiliate $ 571us-gaap_EquityMethodInvestments   $ 463us-gaap_EquityMethodInvestments
Equity in net income (loss) of unconsolidated affiliate $ 108us-gaap_IncomeLossFromEquityMethodInvestments $ (3)us-gaap_IncomeLossFromEquityMethodInvestments