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BUSINESS SEGMENT, GEOGRAPHIC AND CUSTOMER INFORMATION (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Revenues |  |
Revenues | $ 106,390 | $ 114,391
Depreciation and Amortization | 3,305 | 3,593
Operating Income (Loss) | (1,873) | (3,313)
Assets | 72,512 | 74,255
T and D Segment [Member] |  |
Revenues |  |
Transformers | 86,263 | 86,325
Switchgear | 8,747 | 13,001
Revenues | 95,010 | 99,326
Depreciation and Amortization | 1,525 | 1,730
Operating Income (Loss) | 3,155 | 910
Assets | 59,432 | 60,171
Critical Power Segment [Member] |  |
Revenues |  |
Equipment | 1,580 | 5,898
Service | 9,800 | 9,167
Revenues | 11,380 | 15,065
Depreciation and Amortization | 1,718 | 1,792
Operating Income (Loss) | (1,322) | (682)
Assets | 7,745 | 9,414
Corporate [Member] |  |
Revenues |  |
Depreciation and Amortization | 62 | 71
Operating Income (Loss) | (3,706) | (3,541)
Assets | $ 5,335 | $ 4,670

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