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Consolidated Balance Sheets and Statements of Operations and Comprehensive Loss Components (Tables) | 12 Months Ended
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Dec. 31, 2017
Consolidated Balance Sheets and Statements of Operations and Comprehensive Loss Components |
Schedule of inventory prepaid expenses and other current assets and property and equipment |
|  | December 31, |
|  | 2017 |  | 2016 |
|  | (in thousands) |
Inventories: |  |  |  |  |  |  |
Work-in-process |  | $ | 1,612 |  | $ | 1,270 |
Finished goods |  |  | 154 |  |  | 181 |
|  | $ | 1,766 |  | $ | 1,451 |
Prepaid expenses and other: |  |  |  |  |  |  |
Prepaid IC material and production costs |  | $ | 1,107 |  | $ | 3 |
Prepaid insurance |  |  | 115 |  |  | 116 |
Prepaid software |  |  | 38 |  |  | 250 |
Interest receivable |  |  | — |  |  | 17 |
Other |  |  | 87 |  |  | 87 |
|  | $ | 1,347 |  | $ | 473 |
Property and equipment, net: |  |  |  |  |  |  |
Equipment, furniture and fixtures and leasehold improvements |  | $ | 4,478 |  | $ | 5,906 |
Acquired software |  |  | 296 |  |  | 304 |
|  |  | 4,774 |  |  | 6,210 |
Less: Accumulated depreciation and amortization |  |  | (3,947) |  |  | (4,936) |
|  | $ | 827 |  | $ | 1,274 |
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 |
|  | December 31, 2016 |
|  |  |  | Gross |  |  |  |  | Net |
|  | Life |  | Carrying |  | Accumulated |  | Carrying |
|  | (years) |  | Amount |  | Amortization |  | Amount |
Patent license |  | 7 |  |  | $ 780 |  |  | $ 557 |  |  | $ 223 |
Schedule of accrued expenses and other |
|  | December 31, |
|  | 2017 |  | 2016 |
|  | (in thousands) |
Accrued wages and employee benefits |  | $ | 616 |  | $ | 1,051 |
Accrued restructuring liabilities |  |  | 478 |  |  | 5 |
Interest payable |  |  | 346 |  |  | 314 |
IC development and wafer purchase costs |  |  | 335 |  |  | 598 |
Professional fees, legal and consulting |  |  | 182 |  |  | 282 |
Corporate taxes |  |  | 153 |  |  | 52 |
Employee stock purchase plan withholdings |  |  | — |  |  | 200 |
Other |  |  | 397 |  |  | — |
|  | $ | 2,507 |  | $ | 2,502 |

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