Summary of Business and Significant Accounting Policies (Computation of Basic and Diluted Loss Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Accounting Policies [Abstract]
Net loss	$ (1,614)	$ (3,209)
Weighted-average shares — basic	15,421,000	15,244,000
Dilutive effect of common stock equivalents from equity incentive plans	0	0
Weighted-average shares — diluted	15,421,000	15,244,000
Basic	$ (0.10)	$ (0.21)
Diluted	$ (0.10)	$ (0.21)
Shares of common stock equivalents excluded from computation of diluted net income per share (in shares)	149,000	147,000