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Property And Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Property and equipment, gross $ 43,419 $ 41,536
Less accumulated depreciation 22,044 19,644
Total property and equipment 21,375 21,892
Land [Member]    
Property and equipment, gross 1,807 1,856
Buildings And improvements [Member]    
Property and equipment, gross 16,387 15,126
Machinery And Equipment [Member]    
Property and equipment, gross 22,907 20,435
Vehicles [Member]    
Property and equipment, gross 1,298 1,245
Office Equipment [Member]    
Property and equipment, gross 709 465
Construction In Progress [Member]    
Property and equipment, gross $ 311 $ 2,409