Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2017	Jan. 31, 2017
Income Taxes [Line Items]
Undistributed Earnings of Foreign Subsidiaries	$ 25.4	$ 24.7
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	3.4
Deferred Tax Assets, Valuation Allowance, Noncurrent	2.2	$ 2.2
Brazil [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	2.2
Effective Income Tax Rate Reconciliation, Deduction, Other, Amount	$ 9.5