Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Earnings Per Share to Net Income (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
Numerator:
Net income	$ 1,237	$ 553
Effect of dilutive securities:	0	0
Diluted net income	$ 1,237	$ 553
Denominator:
Weighted average common shares outstanding – basic (in shares)	37,597,000	37,259,000
Weighted average common shares outstanding and assumed conversion – diluted (in shares)	39,378,000	39,328,000
Basic net income per common share (in dollars per share)	$ 0.03	$ 0.01
Diluted net income per common share (in dollars per share)	$ 0.03	$ 0.01
Anti-dilutive securities excluded (in shares)	0	0
Restricted stock
Denominator:
Dilutive securities (in shares)	281,000	351,000
Performance stock units
Denominator:
Dilutive securities (in shares)	1,450,000	1,650,000
Options
Denominator:
Dilutive securities (in shares)	50,000	68,000