Note 4 - Capitalized Software Costs - Capitalized Software Costs and Accumulated Amortization (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Jan. 31, 2017
Capitalized software costs:
Acquired software technology	$ 3,458	$ 3,458
Capitalized software development costs	732	748
Total capitalized software costs	4,190	4,206
Less accumulated amortization	(3,549)	(3,474)
Capitalized software costs, net	$ 641	$ 732