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Significant Accounting Policies - Recently Issued Accounting Standards (Details) - USD ($)
Mar. 31, 2019
Jan. 01, 2019
New accounting pronouncement, modified retrospective method    
Operating Lease, Right-of-Use Asset $ 3,476,452 $ 3,600,000
Operating Lease, Liability $ 4,080,986 4,300,000
ASU 2016-02    
New accounting pronouncement, modified retrospective method    
Operating Lease, Right-of-Use Asset   3,600,000
Operating Lease, Liability   $ 4,300,000