Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Contract assets, short-term (in Prepaid expenses and other current assets, net)	$ 2,391	$ 2,058
Contract assets, long-term (in Other assets, net)	67
Total contract assets	2,458	2,058
Deferred revenue	94,399	115,253
Deferred revenue, long-term (in Other liabilities)	1,893	1,465
Total deferred revenue	96,292	116,718
Deferred revenues, current	94,399	115,253
Deferred revenues, non-current (in Other liabilities)	1,893	1,465
Maintenance [Member]
Deferred revenue	59,636	77,037
Deferred revenues, current	59,636	77,037
Subscription and Circulation [Member]
Deferred revenue	32,791	34,020
Deferred revenues, current	32,791	34,020
Professional Services [Member]
Deferred revenue	1,849	2,146
Deferred revenues, current	1,849	2,146
License [Member]
Deferred revenue	89	1,713
Deferred revenues, current	89	1,713
Product and Service, Other [Member]
Deferred revenue	34	337
Deferred revenues, current	$ 34	$ 337