Goodwill and Intangible Assets (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	[1]
Goodwill [Line Items]
Goodwill	$ 452,000	$ 471,000
Impairment losses, goodwill	0
Alveda Pharmaceuticals [Member]
Goodwill [Line Items]
Goodwill	$ 400,000

[1] Derived from the audited December 31, 2017 financial statements