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Commitments and Contingencies Textuals (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Liabilty Recorded For Stanby Letter of Credit [Abstract]    
Liability Recorded For Standy Letters Of Credit $ 84 $ 69
Operating Leases, Future Minimum Payments Due [Abstract]    
Operating Leases, Future Minimum Payments Due, Current 155  
Operating Leases, Future Minimum Payments, Due in Two Years 51  
Operating Leases, Future Minimum Payments, Due in Three Years 36  
Operating Leases, Future Minimum Payments, Due in Four Years 3  
Operating Leases, Future Minimum Payments, Due in Five Years $ 0