Significant Accounting Policies (Lease assets and liabilities) (Details)	Jun. 30, 2019 USD ($)
Leases
Weighted average discount rate (as a percent)	5.47%
Weighted average remaining lease term	38 months 6 days
Operating lease right-of-use assets	$ 1,064,844
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent
Operating lease liabilities current	$ 309,813
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Operating lease liabilities current
Operating lease liabilities non-current	$ 755,031
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent
Minimum
Leases
Weighted average discount rate (as a percent)	5.37%
Maximum
Leases
Weighted average discount rate (as a percent)	5.85%