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Significant Accounting Policies (Lease assets and liabilities) (Details)
Dec. 31, 2019
USD ($)
Leases  
Weighted average discount rate (as a percent) 5.32%
Weighted average remaining lease term 33 months 3 days
Operating lease right-of-use assets $ 1,107,262
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other Assets, Noncurrent
Operating lease liabilities current $ 393,523
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating lease liabilities current
Operating lease liabilities non-current $ 717,150
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Other Liabilities, Noncurrent
Minimum  
Leases  
Weighted average discount rate (as a percent) 4.56%
Maximum  
Leases  
Weighted average discount rate (as a percent) 5.53%