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v3.20.2

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019
--- | --- | --- | ---
Deferred Tax Assets: |  |  |
Net operating loss | $ 10,823 |  | $ 10,636
Credit carryforwards | 1,490 |  | 2,895
Deferred compensation | 1,681 |  | 1,590
Uniform capitalization and inventory | 1,067 |  | 983
Stock-based compensation | 1,079 |  | 744
Reserve for accrued employee benefits | 929 |  | 752
Warranty accrual | 655 |  | 682
Accrued legal | 112 |  | 115
Postretirement benefits liability | 111 |  | 110
Other | 379 |  | 344
Deferred tax assets | 18,326 |  | 18,851
Deferred Tax Liabilities: |  |  |
Depreciation and amortization | (5,035) |  | (5,138)
Retention and other | (620) |  | (365)
Deferred tax liabilities | (5,655) |  | (5,503)
Less: valuation allowance | (9,027) | $ (500) | (8,231)
Net deferred income tax asset | $ 3,644 |  | $ 5,117

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