Note 4 - Capitalized Software Costs - Capitalized Software Costs and Accumulated Amortization (Details) - USD ($) $ in Thousands	Jul. 31, 2017	Jan. 31, 2017
Capitalized software costs:
Acquired software technology	$ 3,458	$ 3,458
Capitalized software development costs	1,069	748
Total capitalized software costs	4,527	4,206
Less accumulated amortization	(3,727)	(3,474)
Capitalized software costs, net	$ 800	$ 732