Commitments and Contingencies (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Commitments description	The minimum lease payments above include the amounts that would be paid if the Company maintains its Bothell lease for the five-year term. The Company has the right to terminate this lease after three years, by giving prior notice at least 180 days prior to such early termination date and by paying a termination fee equal to the sum of three months’ rent plus the unamortized balance of the sum of (a) all brokerage commissions paid by the landlord of the property in connection with the lease and (b) the abated free base rent related to the five months of the lease, treating items (a) and (b) as being amortized on a level basis over the five year base term of the lease.
Rent expense	$ 293	$ 345	$ 375
Bothell [Member]
Operating lease term	Jan. 31, 2019