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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Goodwill |  |
Balance, beginning | $ 10,948 | $ 10,948
No activity |  |
Balance, ending | 10,948 | 10,948
Accumulated impairment losses: |  |
Balance, beginning | (2,421) | (976)
Impairment charges |  | (1,445)
Balance, ending | (2,421) | (2,421)
Net Goodwill | 8,527 | 8,527
T and D Segment [Member] |  |
Goodwill |  |
Balance, beginning | 7,978 | 7,978
No activity |  |
Balance, ending | 7,978 | 7,978
Accumulated impairment losses: |  |
Balance, beginning | (2,421) | (976)
Impairment charges |  | (1,445)
Balance, ending | (2,421) | (2,421)
Net Goodwill | 5,557 | 5,557
Critical Power Segment [Member] |  |
Goodwill |  |
Balance, beginning | 2,970 | 2,970
No activity |  |
Balance, ending | 2,970 | 2,970
Accumulated impairment losses: |  |
Balance, beginning |  |
Impairment charges |  |
Balance, ending |  |
Net Goodwill | $ 2,970 | $ 2,970

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