Note 9 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2019	Jan. 31, 2020
Income Tax Expense (Benefit), Total	$ 626	$ 1,404	$ 2,061	$ 11,991
Effective Income Tax Rate Reconciliation, Percent, Total	16.00%	92.00%	42.00%	(275.00%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 800		$ 10,800
Unrecognized Tax Benefits, Ending Balance	1,300		1,300		$ 1,200
Unrecognized Tax Benefits, Period Increase (Decrease), Total			1,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	100	$ 100	100	$ 100
Deferred Tax Assets, Valuation Allowance, Total	52,900		$ 52,900		51,000
Foreign Tax Authority [Member] | Ministry of Finance, India [Member]
Income Tax Examination, Year under Examination			2010 2013 2018
Foreign Tax Authority [Member] | Ministry of the Economy, Finance and Industry, France [Member]
Income Tax Examination, Year under Examination			2018 2019 2020
Foreign Tax Authority [Member] | Federal Ministry of Finance, Germany [Member]
Deferred Tax Assets, Valuation Allowance, Total	$ 2,700		$ 2,700		$ 2,600
Income Tax Examination, Year under Examination			2015 2016 2017
Foreign Tax Authority [Member] | Mexican Tax Authority [Member]
Income Tax Examination, Year under Examination			2015 2016 2017 2018
Foreign Tax Authority [Member] | Income Tax Autority, Thailand [Member]
Income Tax Examination, Year under Examination			2018