7. Leases (Details 5) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease undiscounted cash flows	$ 1,383,545
Operating lease discount effect of cash flows	(62,527)
Operating lease liabilities	1,321,018	$ 0
Finance lease undiscounted cash flows	184,942
Finance lease discount effect of cash flows	(10,809)
Finance lease liabilities	$ 174,133	$ 266,747