Share Capital Public Offering (Details) - USD ($) $ / shares in Units, $ in Thousands		6 Months Ended
	Apr. 17, 2018	Jun. 30, 2019	Jun. 30, 2018
Sale of Stock [Line Items]
Proceeds from Issuance of Common Stock		$ 0	$ 2,310
Common Stock [Member]
Sale of Stock [Line Items]
Stock Issued During Period, Shares, New Issues	412,500
Number of Securities Called by Warrants	123,750
Shares Issued, Price Per Share	$ 5.60
Proceeds from Issuance of Common Stock	$ 2,300
Over-Allotment Option [Member]
Sale of Stock [Line Items]
Number of Securities Called by Warrants	14,063