Common Stock (Details) $ in Thousands		12 Months Ended
	Jan. 20, 2017 shares	Dec. 31, 2018 USD ($) Vote shares	Dec. 31, 2017 shares
Common stock, authorized shares		100,000,000	100,000,000
Common stock, outstanding shares		14,703,159	12,354,014
Number of votes each common share is entitled to | Vote		1
Dividend declared | $		$ 0
Common Stock
Common stock, authorized shares	100,000,000
Preferred stock, shares authorized	10,000,000
Stock split ratio	0.05033
Conversion of preferred stock into common stock | Common Stock
Shares issued on conversion of preferred stock	3,174,523
Conversion of notes payable - related party and accrued interest into common stock | Common Stock
Shares issued on conversion of notes payable and related accrued interest	1,950,768