Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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+ Details

Summary of Business and Significant Accounting Policies (Stock-Based Compensation Plans) (Details) $ in Thousands	12 Months Ended	252 Months Ended
	Jan. 31, 2022 USD ($)	Dec. 31, 2003 USD ($)	Jan. 31, 2021 USD ($)	Jan. 31, 2020 USD ($)
Accounting Policies [Abstract]
Stock dividend, return percentage (as a percent)		10.00%
Market capitalization reclassified on date of dividend declaration (percent)		10.00%
Stock conversion ratio	1.5
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stockholders' equity	$ 47,446		$ 54,187	$ 54,818
Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stockholders' equity	120,492	$ 122,000	119,655	118,782
Accumulated Deficit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stockholders' equity	$ (67,178)		$ (52,042)	$ (49,810)