Income Taxes (Details) - Schedule of Unrecognized Tax Benefits Roll Forward - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Schedule of Unrecognized Tax Benefits Roll Forward [Abstract]
Unrecognized tax benefits, beginning of period	$ 2,325	$ 2,096
Changes for prior years’ tax positions	4,666	247
Unrecognized tax benefits, end of period	$ 6,991	$ 2,343