Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Apr. 30, 2019	Jan. 31, 2019
Contract assets, short-term (in Other current assets, net)	$ 2,370	$ 2,058
Contract assets, long-term (in Other assets, net)	345
Total contract assets	2,715	2,058
Deferred revenue	104,471	115,253
Deferred revenue, long-term (in Other liabilities)	1,713	1,465
Total deferred revenue	106,184	116,718
Deferred revenues, current	104,471	115,253
Deferred revenues, non-current (in Other liabilities)	1,713	1,465
Maintenance [Member]
Deferred revenue	68,416	77,037
Deferred revenues, current	68,416	77,037
Subscription and Circulation [Member]
Deferred revenue	33,227	34,020
Deferred revenues, current	33,227	34,020
Professional Services [Member]
Deferred revenue	2,020	2,146
Deferred revenues, current	2,020	2,146
License [Member]
Deferred revenue	45	1,713
Deferred revenues, current	45	1,713
Product and Service, Other [Member]
Deferred revenue	763	337
Deferred revenues, current	$ 763	$ 337