Equity Financing and Liquidity (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Mar. 30, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2018
Equity Financing [Abstract]
Expected equity financing investment	$ 17,000
Sale of common stock, net of offering costs		$ 0	$ 14,664
Equity financing cost				$ 2,336
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] | 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
Sale of common stock, net of expenses (in shares)	925,926