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Consolidated Balance Sheet Detail (Tables) | 12 Months Ended
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Dec. 31, 2018
Consolidated Balance Sheets And Statements Of Operations Components Disclosure [Abstract] |
Schedule of identifiable intangible assets | Identifiable intangible assets were (dollar amounts in thousands):
|  | December 31, 2017 |
|  |  |  |  |  | Gross |  |  |  |  |  |  | Net |
|  | Life |  |  | Carrying |  |  | Accumulated |  |  | Carrying |
|  | (years) |  |  | Amount |  |  | Amortization |  |  | Amount |
Patent license |  |  | 7 |  |  | $ | 780 |  |  | $ | 669 |  |  | $ | 111 |
Schedule of accrued expenses and other |
|  | December 31, |
|  | 2018 |  |  | 2017 |
|  | (in thousands) |
Accrued wages and employee benefits |  | $ | 327 |  |  | $ | 616 |
Customer advance |  |  | 300 |  |  |  | — |
Professional fees, legal and consulting |  |  | 178 |  |  |  | 182 |
IC development and wafer purchase costs |  |  | 90 |  |  |  | 335 |
Warranty accrual |  |  | 73 |  |  |  | 64 |
Interest payable |  |  | 51 |  |  |  | 346 |
Corporate taxes |  |  | 21 |  |  |  | 153 |
Accrued restructuring liabilities |  |  | — |  |  |  | 478 |
Other |  |  | 362 |  |  |  | 333 |
|  | $ | 1,402 |  |  | $ | 2,507 |

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