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Intangible Assets (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Acquisition of intangible assets    
Software and development costs 5 years  
Total intangible assets, gross $ 325 $ 325
Less: accumulated amortization (226) (194)
Total intangible assets, net $ 99 $ 131