Note 9 - Net Income (Loss) Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Net Income (Loss) Attributable to Parent	$ 845	$ (1,346)
Basic net income (loss) per share:
Basic (in shares)	14,615	14,652
Basic net income (loss) per share (in dollars per share)	$ 0.06	$ (0.09)
Diluted net income (loss) per share:
Basic (in shares)	14,615	14,652
Effect of potentially dilutive securities (in shares)	2
Weighted average shares outstanding - diluted (in shares)	14,617	14,652
Diluted net income (loss) per share (in dollars per share)	$ 0.06	$ (0.09)