Stock Options (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Number of Options
Options outstanding - beginning balance	545,000	385,000
Options granted		310,000
Options forfeited	(40,000)
Options exercised	(187,500)	(150,000)
Options oustanding - ending balance	317,500	545,000
Options exercisable	307,500
Options available for grant	19,440,765
Weighted average exercise price
Options outstanding - beginning balance	$ 3.09	$ 1.42
Options granted		4.20
Options forfeited	4.20
Options exercised	1.12	1.12
Options outstanding - ending balance	3.41	$ 3.09
Options exercisable	$ 3.49
Weighted average remaining contracted term
Options outstanding - ending balance	7 years 8 months 5 days
Options exercisable	7 years 8 months 5 days
Aggregate intrinsic value
Options outstanding - ending balance	$ 70,000
Options exercisable	$ 60,000