Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Feb. 01, 2018	Jan. 31, 2018
Contract assets, short-term	$ 1,345	$ 890
Contract assets, long-term		110
Total contract assets	1,345	1,000
Deferred revenue	103,369	115,454	$ 116,693
Deferred revenue, long-term	1,366	1,644	2,156
Total deferred revenue	104,735	117,098	118,849
Deferred revenues, current	103,369	115,454	116,693
Deferred revenues, non-current (in Other liabilities)	1,366	$ 1,644	2,156
Maintenance [Member]
Deferred revenue	72,141		80,811
Deferred revenues, current	72,141		80,811
Subscription and Circulation [Member]
Deferred revenue	28,483		31,034
Deferred revenues, current	28,483		31,034
Professional Services [Member]
Deferred revenue	2,297		3,523
Deferred revenues, current	2,297		3,523
License [Member]
Deferred revenue	21		756
Deferred revenues, current	21		756
Product and Service, Other [Member]
Deferred revenue	427		569
Deferred revenues, current	$ 427		$ 569