Liquidity (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	2 Months Ended	12 Months Ended
	May 29, 2018	Mar. 30, 2018	Jul. 31, 2018	May 29, 2018	Dec. 31, 2018	May 23, 2018	Dec. 31, 2017
Equity Financing [Abstract]
Sale of common stock, net of offering costs				$ 17,000	$ 14,664
Sale of common stock, net of expenses (in shares)			153,004
Equity financing cost					$ 2,336
Common stock, shares authorized (in shares)					150,000,000		150,000,000
Legal fees					$ 500
Placement agent fees					$ 1,359
Broadfin Capital [Member]
Equity Financing [Abstract]
Percentage of blocker prior to record date for meeting of shareholders					9.99%
Sabby Management [Member]
Equity Financing [Abstract]
Percentage of blocker prior to record date for meeting of shareholders					9.99%
Equity Financing Agreement [Member]
Equity Financing [Abstract]
Common stock, shares authorized (in shares)						15,740,741
Accelmed Stock Purchase Agreement [Member] | Accelmed Growth Partners L.P. [Member]
Equity Financing [Abstract]
Sale of common stock, net of offering costs		$ 13,000
Share price (in dollars per share)		$ 1.08
Sale of common stock, net of expenses (in shares)		12,037,037
Broadfin Capital and Sabby Management Stock Purchase Agreements [Member]
Equity Financing [Abstract]
Preferred stock, conversion price (in dollars per share)		$ 1.296
Broadfin Capital and Sabby Management Stock Purchase Agreements [Member] | Broadfin Capital [Member]
Equity Financing [Abstract]
Sale of common stock, net of offering costs		$ 1,000
Share price (in dollars per share)		$ 1.08
Sale of common stock, net of expenses (in shares)		925,926
Broadfin Capital and Sabby Management Stock Purchase Agreements [Member] | Sabby Management [Member]
Equity Financing [Abstract]
Sale of common stock, net of offering costs		$ 1,000
Share price (in dollars per share)		$ 1.08
Sale of common stock, net of expenses (in shares)		925,926
Subscription Agreement [Member] | Gohan Investments, Ltd [Member]
Equity Financing [Abstract]
Sale of common stock, net of offering costs		$ 1,000
Share price (in dollars per share)		$ 1.08
Sale of common stock, net of expenses (in shares)		925,926
Subscription Agreement [Member] | Dr. Dolev Rafaeli [Member]
Equity Financing [Abstract]
Sale of common stock, net of offering costs	$ 1,000
Share price (in dollars per share)	$ 1.08			$ 1.08
Sale of common stock, net of expenses (in shares)	925,926