Net Income (Loss) per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Earnings Per Share [Abstract]
Net income (loss)	$ (3,572)	$ (2,211)
Weighted average shares outstanding (shares)	15,317,000	15,128,000
Net effect of dilutive share-based on the treasury stock method using average market price (shares)	0	0
Totals (shares)	15,317,000	15,128,000
Net income (loss) per share - basic (usd per share)	$ (0.23)	$ (0.15)
Net income (loss) per share - diluted (usd per share)	$ (0.23)	$ (0.15)
Anti-dilutive criterion	201,000	252,000