Note 10 - Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Allocated stock-based compensation expense	$ 1,768	$ 1,608
Cost of Subscription [Member]
Allocated stock-based compensation expense	25	22
Cost of Maintenance and Other Revenue [Member]
Allocated stock-based compensation expense	77	67
Cost of Professional Services [Member]
Allocated stock-based compensation expense	220	173
Selling and Marketing Expense [Member]
Allocated stock-based compensation expense	317	277
Research and Development Expense [Member]
Allocated stock-based compensation expense	253	236
General and Administrative Expense [Member]
Allocated stock-based compensation expense	$ 876	$ 833