Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Apr. 30, 2021	Jan. 31, 2021
Contract assets, (in Prepaid expenses and other current assets, net)	$ 3,747	$ 2,117
Deferred revenue, short-term	116,852	125,724
Deferred revenue, long-term (in Other liabilities)	1,824	2,705
Total deferred revenue	118,676	128,429
Maintenance [Member]
Deferred revenue, short-term	59,424	66,833
Subscription and Circulation [Member]
Deferred revenue, short-term	54,694	55,873
Professional Services [Member]
Deferred revenue, short-term	2,502	2,649
License and Other [Member]
Deferred revenue, short-term	$ 232	$ 369