Income Taxes (Income Tax Expense Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2020	Jan. 31, 2019
Income Tax Disclosure [Abstract]
Statutory	$ 585	$ (235)
State taxes (net of federal tax)	400	186
Change in valuation allowance	(573)	831
State rate adjustment	(291)	(222)
Change in unrecognized tax benefits	20	1
Stock Compensation	(28)	(46)
Tax cuts and jobs act	0	(15)
Expirations of attributes	345	28
Permanent differences	(17)	8
Return to provision	(96)	(39)
Income tax expense (benefit)	$ 345	$ 497

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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