Note 2 - Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Jul. 31, 2018	Feb. 01, 2018	Jan. 31, 2018
Contract assets, short-term	$ 1,372	$ 890
Contract assets, long-term		110
Total contract assets	1,372	1,000
Deferred revenue	91,195	115,454	$ 116,693
Deferred revenue, long-term	1,054	1,644	2,156
Total deferred revenue	92,249	117,098	118,849
Deferred revenues, current	91,195	115,454	116,693
Deferred revenues, non-current (in Other liabilities)	1,054	$ 1,644	2,156
Maintenance [Member]
Deferred revenue	61,650		80,811
Deferred revenues, current	61,650		80,811
Subscription and Circulation [Member]
Deferred revenue	27,821		31,034
Deferred revenues, current	27,821		31,034
Professional Services [Member]
Deferred revenue	1,589		3,523
Deferred revenues, current	1,589		3,523
License [Member]
Deferred revenue	96		756
Deferred revenues, current	96		756
Product and Service, Other [Member]
Deferred revenue	39		569
Deferred revenues, current	$ 39		$ 569