Stock-Based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Apr. 11, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Stock options [Member]
Stock-Based Compensation (Textual)
Number of options outstanding		101,300		101,300		175,600
Options outstanding, vested and expected to vest, aggregate intrinsic value		$ 0		$ 0
Share-based compensation expense		$ 0	$ 29	$ 17	$ 56
Term of stock options description				Stock options granted under the 2006 and 2015 Plans are exercisable over a maximum term of ten years from the date of grant, vest in various installments over a one to four-year period and have exercise prices reflecting the market value of the shares of common stock on the date of grant.
Options granted to purchase of common stock to employee				30,000
Weighted average grant date fair value		$ 0.20		$ 0.20
Options granted fair value				$ 6
Swedish employee [Member]
Stock-Based Compensation (Textual)
Share-based compensation expense	$ 12
Options granted to purchase of common stock to employee	30,000
Weighted average grant date fair value	$ 15.00
Options granted fair value	$ 12
Options expire date	Apr. 11, 2021
Determined purchase price of stock options	$ 0.40