Note 5 - Capitalized Software Costs - Estimated Amortization Expense (Details) - USD ($) $ in Thousands	Jul. 31, 2018	Feb. 01, 2018	Jan. 31, 2018
2019 remaining	$ 312
2020	580
2021	395
2022	78
Thereafter	40
Total	$ 1,405	$ 990	$ 990