Subsequent Events (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	Nov. 04, 2019	May 03, 2018
Underwriter [Member]
Gross proceeds from public offering		$ 7,684
Number of common shares sold		4,210,527
Sale of stock price per share		$ 1.90
Subsequent Event [Member]
Gross proceeds from public offering	$ 3,000
Net proceeds from public offering	$ 2,600
Subsequent Event [Member] \| Underwriter [Member]
Number of common shares sold	3,529,412
Sale of stock price per share	$ 0.79
Subsequent Event [Member] \| Underwriter [Member] \| Over-Allotment Option [Member]
Number of common shares sold	529,411
Subsequent Event [Member] \| Underwriter [Member] \| Public [Member]
Sale of stock price per share	$ 0.85