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v3.19.2

Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2017
Revenue, Major Customer [Line Items] |  |  |
Revenue from contracts with customers: | $ 14,277 | $ 19,166 | $ 19,603
Operating income (loss): | (755) | 1,938 | 761
Depreciation expense: | 261 | 319 | 266
Capital expenditure: | 695 | 271 | 197
Total assets: | 15,250 | 18,130 |
Property, plant and equipment | 886 | 770 |
Metal Stamping and Mechanical OEM [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Revenue from contracts with customers: | 7,717 | 9,638 | 8,323
Operating income (loss): | (405) | 955 | 267
Depreciation expense: | 133 | 160 | 107
Capital expenditure: | 398 | 136 | 88
Total assets: | 8,084 | 8,402 |
Property, plant and equipment | 513 | 391 |
Electric OEM [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Revenue from contracts with customers: | 6,560 | 9,528 | 11,280
Operating income (loss): | (250) | 1,123 | 646
Depreciation expense: | 128 | 159 | 159
Capital expenditure: | 297 | 135 | 109
Total assets: | 7,000 | 9,535 |
Property, plant and equipment | 373 | 379 |
Corporate [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Operating income (loss): | (100) | (140) | $ (152)
Total assets: | $ 166 | $ 193 |

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