Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Oct. 31, 2019	Jan. 31, 2019
Contract assets, short-term (in Prepaid expenses and other current assets, net)	$ 3,215	$ 2,058
Contract assets, long-term (in Other assets, net)	589
Total contract assets	3,804	2,058
Deferred revenue, short-term	81,893	115,253
Deferred revenue, long-term (in Other liabilities)	1,929	1,465
Total deferred revenue	83,822	116,718
Maintenance [Member]
Deferred revenue, short-term	47,125	77,037
Subscription and Circulation [Member]
Deferred revenue, short-term	32,798	34,020
Professional Services [Member]
Deferred revenue, short-term	1,730	2,146
License [Member]
Deferred revenue, short-term	85	1,713
Product and Service, Other [Member]
Deferred revenue, short-term	$ 155	$ 337