Unaudited Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)
Beginning balance (shares) at Jan. 31, 2024		16,347,314
Beginning balance at Jan. 31, 2024	$ 91,179	$ 164	$ 121,373	$ (29,048)	$ (1,310)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	27,374			27,374
Cash dividends	(1,060)			(1,060)
Pension adjustments, net of tax effect	(56)				(56)
Shares vested and others (shares)		81,794
Shares vested and others	(412)	$ 1	(413)
Stock compensation expense	333		333
Stock repurchase (shares)		(139,702)
Stock repurchase	$ (1,499)	$ (2)	(1,497)
Ending balance (shares) at Oct. 31, 2024	16,289,406	16,289,406
Ending balance at Oct. 31, 2024	$ 115,859	$ 163	119,796	(2,734)	(1,366)
Beginning balance (shares) at Jul. 31, 2024		16,289,406
Beginning balance at Jul. 31, 2024	107,812	$ 163	119,734	(10,728)	(1,357)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8,401			8,401
Cash dividends	(407)			(407)
Pension adjustments, net of tax effect	(9)				(9)
Shares vested and others (shares)		0
Shares vested and others	(1)	$ 0	(1)
Stock compensation expense	63		63
Stock repurchase (shares)		0
Stock repurchase	$ 0	$ 0	0
Ending balance (shares) at Oct. 31, 2024	16,289,406	16,289,406
Ending balance at Oct. 31, 2024	$ 115,859	$ 163	119,796	(2,734)	(1,366)
Beginning balance (shares) at Jan. 31, 2025	16,087,082	16,087,082
Beginning balance at Jan. 31, 2025	$ 109,265	$ 161	117,549	(8,867)	422
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	9,592			9,592
Cash dividends	(1,181)			(1,181)
Pension adjustments, net of tax effect	(202)				(202)
Shares vested and others (shares)		23,003
Shares vested and others	0	$ 0	0
Stock compensation expense	161		161
Stock repurchase (shares)		(348,944)
Stock repurchase	$ (4,000)	$ (4)	(3,996)
Ending balance (shares) at Oct. 31, 2025	15,761,141	15,761,141
Ending balance at Oct. 31, 2025	$ 113,635	$ 157	113,714	(456)	220
Beginning balance (shares) at Jul. 31, 2025		15,761,141
Beginning balance at Jul. 31, 2025	115,376	$ 157	113,667	1,264	288
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,325)			(1,325)
Cash dividends	(395)			(395)
Pension adjustments, net of tax effect	(68)				(68)
Shares vested and others (shares)		0
Shares vested and others	0	$ 0	0
Stock compensation expense	47		47
Stock repurchase (shares)		0
Stock repurchase	$ 0	$ 0	0
Ending balance (shares) at Oct. 31, 2025	15,761,141	15,761,141
Ending balance at Oct. 31, 2025	$ 113,635	$ 157	$ 113,714	$ (456)	$ 220