5. Leases (Tables)

3 Months Ended

Mar. 31, 2019

Leases Tables Abstract

Lease maturity

	March 31, 2019
Maturity of Lease Liabilities	Lease Payments
2019 (remaining)	$	188,730
2020		106,226
Total undiscounted operating lease payments	$	294,956
Less: Imputed interest		(3,888	)
Present value of operating lease liabilities	$	291,068
Balance Sheet Classification
Operating lease liabilities	$	205,958
Long-term operating lease liabilities		85,110
Total operating lease liabilities	$	291,068
Other Information
Weighted-average remaining lease term for operating leases		1.16 years
Weighted-average discount rate for operating leases		10.0	%

Supplemental cash flow information related to operating leases

	Three Months Ended March 31,
	2019		2018
Operating cash flow information:
Amounts included in measurement of lease liabilities	$	135,617	$	––
Non-cash activities:
Right-of-use assets obtained in exchange for lease obligations	$	395,565	$	––