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Accrued Liabilities and Other (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Payables and Accruals [Abstract]    
Accrued vacation $ 892 $ 901
Accrued paid personal leave 584 590
Accrued bonus 687 1,346
Property tax payable 998 0
Other 284 351
Total $ 3,445 $ 3,188