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Basis of Presentation (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2017
Provision for Inventory Write Down    
Reclassification adjustment to prior year amounts $ 1,000,000  
Other Noncurrent Liabilities    
Reclassification adjustment to prior year amounts   $ 95,514