Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Jul. 31, 2021	Jan. 31, 2021
Contract assets, short-term (in “Prepaid expenses and other current assets, net”)	$ 4,659	$ 2,117
Deferred revenue, short-term	110,394	125,724
Deferred revenue, long-term (in “Other liabilities”)	2,222	2,705
Total deferred revenue	112,616	128,429
Maintenance [Member]
Deferred revenue, short-term	52,626	66,833
Subscription and Circulation [Member]
Deferred revenue, short-term	54,836	55,873
Professional Services [Member]
Deferred revenue, short-term	2,864	2,649
License and Other [Member]
Deferred revenue, short-term	$ 68	$ 369