Stock Options - Schedule of Stock Option Activity (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Number of shares, Beginning Balance	660,000	713,000
Number of shares, Granted	153,000	110,000
Number of shares, Cancelled or expired	(47,112)	(61,334)
Number of shares, Exercised	(117,888)	(101,666)
Number of shares, Ending Balance	648,000	660,000
Number of shares Exercisable, Ending Balance	395,000
Weighted average exercise price, Beginning Balance	$ 1.35	$ 1.21
Weighted average exercise price, Granted	3.46	1.74
Weighted average exercise price, Cancelled or expired	1.37	1.09
Weighted average exercise price, Exercised	1.19	1.01
Weighted average exercise price, Ending Balance	1.85	1.35
Weighted average exercise price Exercisable, Ending Balance	1.25
Minimum [Member]
Exercise price per share, Beginning Balance	0.75	0.75
Exercise price per share, Granted		1.48
Exercise price per share, Cancelled or expired	0.75	1.00
Exercise price per share, Exercised	0.75	0.75
Exercise price per share, Ending Balance	0.75	0.75
Exercise price per share Exercisable, Ending Balance	0.75
Maximum [Member]
Exercise price per share, Beginning Balance	1.75	1.70
Exercise price per share, Granted	3.46	1.75
Exercise price per share, Cancelled or expired	1.70	1.70
Exercise price per share, Exercised	1.70	1.42
Exercise price per share, Ending Balance	3.46	$ 1.75
Exercise price per share Exercisable, Ending Balance	$ 1.70