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v3.21.1

Income Taxes - Tax Effects of Temporary Differences that gave Rise to Significant Portions of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Jan. 31, 2021 | Jan. 31, 2020
--- | --- | ---
Deferred Tax Assets: |  |
Inventory | $ 2,700 | $ 2,094
Honeywell Royalty Liability | 2,590 | 2,583
State R&D Credits | 1,546 | 1,496
Share-Based Compensation | 600 | 582
Bad Debt | 245 | 165
Warranty Reserve | 176 | 205
Compensation Accrual | 159 | 159
Net Operating Loss | 154 | 443
ASU 842 Adjustment—Lease Liability | 125 |
Unrecognized State Tax Benefits | 101 | 116
Foreign Tax Credit | 83 | 113
Deferred Service Contract Revenue | 68 | 111
Other | 308 | 295
Deferred Tax Assets, Total | 8,855 | 8,362
Deferred Tax Liabilities: |  |
Accumulated Tax Depreciation in Excess of Book Depreciation | 752 | 1,002
Intangibles | 399 | 776
ASU 842 Adjustment – Lease Liability | 119 | 0
Other | 307 | 188
Deferred Tax Liabilities, Total | 1,577 | 1,966
Subtotal | 7,278 | 6,396
Valuation Allowance | (1,721) | (1,752)
Net Deferred Tax Assets | $ 5,557 | $ 4,644

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