Stockholders' Equity - Schedule of Stock Option Activity Plans (Details) - $ / shares	1 Months Ended	12 Months Ended
	Jul. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Number of options, granted	98,098
2009 Equity Incentive Plans [Member]
Number of options outstanding, beginning of year		1,877,295	695,061
Number of options, granted		4,675,221	1,190,567
Number of options, forfeited		(213,855)	(8,333)
Number of options, exercised
Number of options outstanding, end of year		6,338,661	1,877,295
Number of options exercisable, end of year		2,376,353	1,046,487
Available for future grants		159,322	4,139,454
Option price, forfeited			$ 1.56
Option price, exercised
Weighted average exercise price outstanding, beginning of year		1.92	4.70
Weighted average exercise price, granted		0.34	0.29
Weighted average exercise price, forfeited		28.26	1.56
Weighted average exercise price, exercised
Weighted average exercise price outstanding, end of year		$ 0.36	1.92
Weighted average exercise price exercisable, end of year			$ 0.42
2009 Equity Incentive Plans [Member] | Minimum [Member]
Weighted average remaining contractual life (years)		1 year	2 years
Option price outstanding, beginning of year		$ 0.33	$ 1.56
Option price, granted		0.30	0.33
Option price, forfeited		8.16
Option price outstanding, end of year		0.30	0.33
Option price exercisable, end of year		$ 0.30	$ 0.33
2009 Equity Incentive Plans [Member] | Maximum [Member]
Weighted average remaining contractual life (years)		10 years	10 years
Option price outstanding, beginning of year		$ 48.36	$ 48.36
Option price, granted		0.38	0.67
Option price, forfeited		48.36
Option price outstanding, end of year		48.36	48.36
Option price exercisable, end of year		$ 48.36	$ 48.36
2018 Equity Incentive Plans [Member]
Number of options outstanding, beginning of year
Number of options, granted		1,189,284
Number of options, forfeited
Number of options, exercised
Number of options outstanding, end of year		1,189,284
Number of options exercisable, end of year		294,404
Weighted average remaining contractual life (years)		10 years
Available for future grants		5,810,716
Option price outstanding, beginning of year
Option price, granted		0.22
Option price, forfeited
Option price, exercised
Option price outstanding, end of year		0.22
Option price exercisable, end of year		0.22
Weighted average exercise price outstanding, beginning of year
Weighted average exercise price, granted		0.22
Weighted average exercise price, forfeited
Weighted average exercise price, exercised
Weighted average exercise price outstanding, end of year		0.22
Weighted average exercise price exercisable, end of year		$ 0.22