Note 6 - Deferred Revenues - Summary of Deferred Revenues (Details) - USD ($) $ in Thousands	Jan. 31, 2017	Jan. 31, 2016
Deferred revenue	$ 104,125	$ 97,911
Long-term deferred revenue	2,353	1,690
Total deferred revenues	106,478	99,601
Software Service, Support and Maintenance Arrangement [Member]
Deferred revenue	78,923	79,533
Subscription Arrangement [Member]
Deferred revenue	20,389	14,194
Nonsoftware Service, Support and Maintenance Arrangement [Member]
Deferred revenue	2,550	2,332
Software License Arrangement [Member]
Deferred revenue	1,740	1,549
Deferred Other Revenue [Member]
Deferred revenue	$ 523	$ 303

The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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