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Property, Plant and Equipment - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Kitchens 2.0        
Property Plant And Equipment [Line Items]        
Investment for kitchen expansion     $ 21,000,000.0  
Property, Plant and Equipment        
Property Plant And Equipment [Line Items]        
Depreciation expense $ 3,975,822 $ 3,549,460 11,462,514 $ 10,208,173
Product        
Property Plant And Equipment [Line Items]        
Cost of goods sold, depreciation and amortization $ 1,598,843 $ 1,579,278 $ 4,753,623 $ 4,568,607