Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Deferred tax assets
Accrued vacation and sick leave	$ 2,238	$ 2,143
Retirement plans	1,725	2,391
Insurance reserves	227	197
Warranty	126	128
Net operating loss carryforwards	439	599
Right of use liability	9,505	1,935
Inventory	1,709	1,878
Other	580	536
Total deferred tax assets	16,549	9,807
Deferred tax liabilities
Tax in excess of book depreciation	(804)	(882)
Right of use assets	(8,979)	(1,663)
Other	(709)	(377)
Total deferred tax liabilities	(10,492)	(2,922)
Valuation allowance	(236)	(251)
Net long term deferred tax asset	$ 5,821	$ 6,634