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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, 2022 | Jan. 31, 2021
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Deferred Tax Assets: |  |
Inventory | $ 2,159 | $ 2,700
Honeywell Royalty Liability | 2,655 | 2,590
State R&D Credits | 1,925 | 1,546
Share-Based Compensation | 593 | 600
Bad Debt | 213 | 245
Warranty Reserve | 198 | 176
Compensation Accrual | 322 | 159
Net Operating Loss | 152 | 154
ASU 842 Adjustment—Lease Liability | 93 | 125
Unrecognized State Tax Benefits | 64 | 101
Foreign Tax Credit | 154 | 83
Deferred Service Contract Revenue | 61 | 68
Other | 224 | 308
Deferred Tax Assets, Total | 8,813 | 8,855
Deferred Tax Liabilities: |  |
Accumulated Tax Depreciation in Excess of Book Depreciation | 455 | 752
Intangibles | 767 | 399
ASU 842 Adjustment – Lease Liability | 90 | 119
Other | 318 | 307
Deferred Tax Liabilities, Total | 1,630 | 1,577
Subtotal | 7,183 | 7,278
Valuation Allowance | (1,778) | (1,721)
Net Deferred Tax Assets | 5,405 | 5,557
Deferred taxes are reflected in the consolidated balance sheet as follows: |  |
Deferred Tax Assets | 5,651 | 5,941
Deferred Tax Liabilities | (246) | (384)
Total Net Deferred Tax Assets | $ 5,405 | $ 5,557

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