Note 10 - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Cost of Subscription [Member]
Stock-based compensation expense	$ 35	$ 22	$ 54	$ 34
Cost of Maintenance and Other Revenue [Member]
Stock-based compensation expense	99	87	160	133
Cost of Professional Services [Member]
Stock-based compensation expense	278	234	433	353
Selling and Marketing Expense [Member]
Stock-based compensation expense	427	429	688	690
Research and Development Expense [Member]
Stock-based compensation expense	330	290	557	438
General and Administrative Expense [Member]
Stock-based compensation expense	1,249	1,369	2,080	2,089
Stock-based compensation expense	$ 2,418	$ 2,431	$ 3,972	$ 3,737