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BUSINESS SEGMENT, GEOGRAPHIC AND CUSTOMER INFORMATION (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |
Revenues | $ 19,490 | $ 20,582
Depreciation and Amortization | 464 | 354
Operating Loss | (4,284) | (11,753)
Assets | 21,287 | 28,479
T&D Solutions [Member] |  |
Segment Reporting Information [Line Items] |  |
Assets | 3,443 | 6,075
Critical Power Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Assets | 3,705 | 4,849
Corporate [Member] |  |
Segment Reporting Information [Line Items] |  |
Assets | 14,139 | 17,507
Operating Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Assets | 21,287 | 28,431
Operating Segments [Member] | T&D Solutions [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 10,257 | 8,985
Depreciation and Amortization | 113 | 144
Operating Loss | (1,934) | (3,143)
Operating Segments [Member] | T&D Solutions [Member] | Switchgear [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 10,257 | 8,985
Operating Segments [Member] | Critical Power Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 9,233 | 11,597
Depreciation and Amortization | 319 | 162
Operating Loss | (430) | (3,581)
Operating Segments [Member] | Critical Power Segment [Member] | Equipment [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 1,574 | 1,416
Operating Segments [Member] | Critical Power Segment [Member] | Services [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 7,659 | 10,181
Unallocated Corporate Overhead Expenses [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation and Amortization | 32 | 48
Operating Loss | $ (1,920) | $ (5,029)

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