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INTANGIBLE ASSETS (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items] |  |  |
Purchased technology | $ 1,447,000 |  | $ 1,401,000
Purchased technology, net | 32,000 |  | 67,000
Goodwill | 185,000 |  | 185,000
Amortization of intangible assets | 27,000 | $ 81,000 |
Brand name and trademark |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Brand name and trademark | 0 |  | 1,510,000
Purchased technology and license rights |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Less: accumulated amortization | (1,415,000) |  | (1,334,000)
Purchased technology, net | $ 32,000 |  | 179,000
Purchased technology and license rights | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible asset, useful life (in years) | 5 years |  |
Purchased technology and license rights | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible asset, useful life (in years) | 17 years |  |
Purchased technology and license rights | Core |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Purchased technology | $ 0 |  | $ 112,000
Purchased technology and license rights | Core | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible asset, useful life (in years) | 5 years |  |
Purchased technology and license rights | Core | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible asset, useful life (in years) | 17 years |  |

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