Commitments (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Other Commitments [Line Items]
Operating lease description	The Company leases a facility in Gaithersburg, Maryland under an operating lease that expires January 31, 2021, with one additional five-year renewal at the Company’s election. The Company also leases a facility in Woburn, Massachusetts under an operating lease that expires January 30, 2022. Additionally, the Company leases office space in Denmark; this lease is currently on a month-to-month basis.
Operating leases, rent expense, net, total	$ 249,757	$ 232,836
Capital leases description	The Company leases computer equipment, office furniture, and equipment under various capital leases. The leases expire at various dates through 2021. The leases require monthly principal and interest payments.
Capital leases expiration date description	The leases expire at various dates through 2021.
Restructuring benefits recognized			$ 121,000
Retention expense incurred			$ 68,000
Designated service period of employees, description	The service periods ended in December 2017
Facility in Woburn, Massachusetts [Member]
Other Commitments [Line Items]
Future minimum operating lease payments	$ 1,800,000
Facility in Woburn, Massachusetts [Member] | AdvanDx [Member]
Other Commitments [Line Items]
Operating leases expiration date	Jan. 30, 2022
Gaithersburg, Maryland Office Lease [Member]
Other Commitments [Line Items]
Operating leases expiration date	Jan. 31, 2021
Operating leases additional term	5 years