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BASIS OF PRESENTATION (Details Narrative) $ / shares in Units, $ in Thousands |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) | Jun. 28, 2019 USD ($) | Sep. 24, 2013 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) Segment | Dec. 31, 2018 USD ($)
Number of reportable segments | Segment |  |  |  |  |  | 2 |
Cash and cash equivalents | $ 8,213 |  |  | $ 8,213 |  | $ 8,213 | $ 211
Working capital | 10,100 |  |  | 10,100 |  | 10,100 |
Carrying value of note | 5,096 |  |  | 5,096 |  | 5,096 | $ 865
Gain on sale of discontinued subsidiaries |  |  |  |  |  | 13,686 |
Declared dividend unpaid |  |  |  |  | $ 12,000 |  |
Myers Power Products, Inc. Modified Preliminary Injunction [Member] | Bond [Member] |  |  |  |  |  |  |
Damages sought | 12,000 |  |  |  |  |  |
Transformer Business Units [Member] |  |  |  |  |  |  |
Purchase price of divestiture |  | $ 68,000 |  |  |  |  |
Net consideration from divestiture |  |  |  |  |  | 45,200 |
Gain on sale of discontinued subsidiaries |  |  |  |  |  | 13,700 |
Transformer Business Units [Member] | Subordinated Promissory Notes [Member] |  |  |  |  |  |  |
Principal amount |  | 7,500 |  |  |  |  |
Cash payment for promissory note |  |  |  | 1,700 |  |  |
Revaluation of note |  |  |  |  |  | 651 |
Carrying value of note | 5,100 |  |  | 5,100 |  | 5,100 |
Transformer Business Units [Member] | Subordinated Promissory Notes [Member] | First Seller Note [Member] |  |  |  |  |  |  |
Principal amount | $ 3,300 | 5,000 |  | $ 3,300 |  | $ 3,300 |
Transformer Business Units [Member] | Subordinated Promissory Notes [Member] | Second Seller Note [Member] |  |  |  |  |  |  |
Principal amount |  | $ 2,500 |  |  |  |  |
IPO [Member] |  |  |  |  |  |  |
Issuance of common stock |  |  | $ 7,900 |  |  |  |
Issuance of common stock (in shares) | shares |  |  | 1,265,000 |  |  |  |
Share price | $ / shares |  |  | $ 7.00 |  |  |  |

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