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Leases (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Current    
Prepaid expenses and other current assets $ 22,187  
Noncurrent    
Operating lease right-of-use assets 4,590,492 $ 0
Total lease right-of-use assets 4,612,679  
Current    
Current maturities of operating leases 647,782 0
Noncurrent    
Noncurrent operating leases 4,036,684 $ 0
Total lease liabilities $ 4,684,466  
Operating leases 18 years  
Operating leases 4.61%