Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands			1 Months Ended			12 Months Ended
	Dec. 29, 2017	Jan. 22, 2013	Jul. 31, 2017	Mar. 31, 2017	Nov. 30, 2014	Dec. 31, 2017	Oct. 30, 2017
Commitments And Contingencies [Line Items]
Lease commencement date			Jul. 17, 2017	Jul. 01, 2017
Lease termination date			Jan. 16, 2023	Dec. 31, 2022
Lease option to extend termination year				2027
Lease option to extend termination date			Jan. 31, 2028
Lease monthly rent plus utilities			$ 20,000
Lease monthly rent plus utilities beginning date			Jan. 31, 2018
Lease annual increase in rental percentage			3.00%
Advanced NeuroRehabilitation, LLC | License Agreement for Exclusive Right on Patent Pending Technology
Commitments And Contingencies [Line Items]
Issuance of common stock for license agreement		3,207,005
Percentage of royalty on net revenue		4.00%
A&B Company Limited | Asset Purchase Agreement
Commitments And Contingencies [Line Items]
Contract penalty payable on failure to obtain FDA clearance							$ 2,000
Altair LLC
Commitments And Contingencies [Line Items]
Percentage of royalty on sales					7.00%
Key Tronic Corporation | Manufacturing and Supply Agreement
Commitments And Contingencies [Line Items]
Agreement description						On December 29, 2017, NHC, a wholly owned subsidiary of the Company entered into a Manufacturing and Supply Agreement (“MSA”) with Key Tronic Corporation (“Key Tronic”), for the manufacture and supply of the Company’s PoNS device based upon the Company’s product specifications as set forth in the MSA. Per the agreement, the Company shall provide to Key Tronic a rolling forecast for the procurement of parts and material and within normal lead times based on estimated delivery dates for the manufacture of the PoNS device. The term of the agreement will be for three-years and will automatically renew for additional consecutive terms of one year, unless cancelled by either party upon 180-day written notice to the other party prior to the end of the then current term. As of December 31, 2017, no initial forecast had been provided to Key Tronic by the Company.
Agreement term	3 years
Agreement auto renewal period	1 year
Notice period to cancel the renewal of agreement	180 days