Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2017	Mar. 31, 2017	Jun. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Number of common stock issued, shares		2,793,000	9,900,000
Warrants to purchase shares of common stock		855,000
Gross proceeds from equity offerings		$ 12,200
Warrants exercise price description			Each Firm Share and accompanying Base Warrant was sold for a combined effective price of $1.10, and each Pre-Funded Warrant and accompanying Base Warrant was sold for a combined effective price of $1.09.
Gross proceeds from warrants			$ 13,700
Net proceeds from warrants			$ 12,300
Number of common stock issued, value				$ 431
Net proceeds from common stock					$ 24,042
Underwriters [Member] | Over-Allotment Option [Member]
Number of common stock issued, shares	875,000
Gross proceeds from equity offerings	$ 1,000
Number of common stock issued, value	1,000
Net proceeds from common stock	900
Base Warrants [Member]
Warrants to purchase shares of common stock			12,500,000
Warrant exercise price			$ 1.25
Net proceeds from warrants	$ 600
Pre-Funded Warrants [Member]
Warrants to purchase shares of common stock			2,600,000
Warrant exercise price			$ 0.01	$ 0.01
Termination Agreement [Member] | RedPath Equityholder Representative, LLC [Member]
Warrants to purchase shares of common stock		100,000
Warrant term		5 years
Common stock price, per share		$ 4.69
RedPath Debt Exchange and conversion of Senior Convertible Notes [Member]
Number of common stock issued, shares		3,795,429