Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Feb. 01, 2018	Jan. 31, 2018
Contract assets, short-term (in Other current assets, net)	$ 1,452	$ 890
Contract assets, long-term (in Other assets, net)		110
Total contract assets	1,452	1,000
Deferred revenue	80,537	115,454	$ 116,693
Deferred revenue, long-term (in Other labilities)	1,071	1,644	2,156
Total deferred revenue	81,608	117,098	118,849
Deferred revenues, current	80,537	115,454	116,693
Deferred revenues, non-current (in Other liabilities)	1,071	$ 1,644	2,156
Maintenance [Member]
Deferred revenue	50,708		80,811
Deferred revenues, current	50,708		80,811
Subscription and Circulation [Member]
Deferred revenue	27,751		31,034
Deferred revenues, current	27,751		31,034
Professional Services [Member]
Deferred revenue	1,811		3,523
Deferred revenues, current	1,811		3,523
License [Member]
Deferred revenue	95		756
Deferred revenues, current	95		756
Product and Service, Other [Member]
Deferred revenue	172		569
Deferred revenues, current	$ 172		$ 569