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v3.20.2

Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Revenue, Major Customer [Line Items] |  |  |
Revenue from contracts with customers: | $ 12,558 | $ 14,277 | $ 19,166
Operating income (loss): | 747 | (755) | 1,938
Depreciation expense: | 145 | 261 | 319
Capital expenditure: | 91 | 695 | 271
Total assets: | 18,169 | 15,250 |
Property, plant and equipment | 878 | 886 |
Metal Stamping and Mechanical OEM [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Revenue from contracts with customers: | 6,929 | 7,717 | 9,638
Operating income (loss): | 458 | (405) | 955
Depreciation expense: | 83 | 133 | 160
Capital expenditure: | 53 | 398 | 136
Total assets: | 9,753 | 8,084 |
Property, plant and equipment | 520 | 513 |
Electric OEM [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Revenue from contracts with customers: | 5,629 | 6,560 | 9,528
Operating income (loss): | 355 | (250) | 1,123
Depreciation expense: | 62 | 128 | 1,938
Capital expenditure: | 38 | 297 | 135
Total assets: | 8,248 | 7,000 |
Property, plant and equipment | 358 | 373 |
Corporate [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Operating income (loss): | (66) | (100) | $ (140)
Total assets: | $ 168 | $ 166 |

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