Commitments and Contingent Liabilities - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Loss Contingencies [Line Items]
Operating lease expiration description	The facilities of the Company are leased under various operating lease agreements for periods ending no later than 2024.
Pledged bank deposits	$ 807	$ 133
Operating Lease Commitments	$ 962	$ 283
Motor Vehicles
Loss Contingencies [Line Items]
Operating lease expiration description	The Company also leases motor vehicles under various operating leases, which expire on various dates, the latest of which is in 2019.
Maximum
Loss Contingencies [Line Items]
Operating lease agreements, expiration year	2024
Maximum | Motor Vehicles
Loss Contingencies [Line Items]
Operating lease agreements, expiration year	2019