Income Taxes (Income Tax Expense Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2023	Jan. 31, 2022
Income Tax Disclosure [Abstract]
Statutory	$ 1,689	$ (782)
State taxes (net of federal tax)	746	14
Change in valuation allowance	(10,546)	12,303
State rate adjustment	(397)	(197)
Change in unrecognized tax benefits	6	5
Stock compensation	35	48
Expirations of attributes	17	55
Permanent differences	(13)	(31)
Return to provision	(41)	(7)
Income tax expense (benefit)	$ (8,504)	$ 11,408

Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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