Significant Accounting Policies (Lease assets and liabilities) (Details)	Sep. 30, 2019 USD ($)
Leases
Weighted average discount rate (as a percent)	5.32%
Weighted average remaining lease term	35 months 24 days
Operating lease right-of-use assets	$ 1,188,664
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent
Operating lease liabilities current	$ 384,846
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Operating lease liabilities current
Operating lease liabilities non-current	$ 807,487
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%