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Consolidated Balance Sheets and Statements of Operations and Comprehensive Loss Components | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Balance Sheet Detail |  |
Consolidated Balance Sheets and Statements of Operations and Comprehensive Loss Components | Note 3. Balance Sheet Detail
|  | September 30, |  | December 31, |
|  | 2017 |  | 2016 |
|  | (in thousands) |
Inventories: |  |  |  |  |  |  |
Work-in-process |  | $ | 1,071 |  | $ | 1,270 |
Finished goods |  |  | 175 |  |  | 181 |
|  | $ | 1,246 |  | $ | 1,451 |
Identifiable intangible assets were (dollar amounts in thousands):
|  | September 30, 2017 |
|  |  |  | Gross |  |  |  |  | Net |
|  | Life |  | Carrying |  | Accumulated |  | Carrying |
|  | (years) |  | Amount |  | Amortization |  | Amount |
Patent license |  | 7 |  |  | $ 780 |  |  | $ 641 |  |  | $ 139 |
|  | December 31, 2016 |
|  |  |  | Gross |  |  |  |  | Net |
|  | Life |  | Carrying |  | Accumulated |  | Carrying |
|  | (years) |  | Amount |  | Amortization |  | Amount |
Patent license |  | 7 |  |  | $ 780 |  |  | $ 557 |  |  | $ 223 |
Amortization expense has been included in research and development expense in the condensed consolidated statements of operations and comprehensive loss. The estimated aggregate amortization expense to be recognized in future years is less than $0.1 million for the remainder of 2017 and $0.1 million in 2018. | Note 2: Consolidated Balance Sheets and Statements of Operations and Comprehensive Loss Components
|  | December 31, |
|  | 2016 |  | 2015 |
|  | (in thousands) |
Inventories: |  |  |  |  |  |  |
Work-in-process |  | $ | 1,270 |  | $ | 1,478 |
Finished goods |  |  | 181 |  |  | 119 |
|  | $ | 1,451 |  | $ | 1,597 |
Prepaid expenses and other: |  |  |  |  |  |  |
Prepaid software |  | $ | 250 |  | $ | 287 |
Prepaid insurance |  |  | 116 |  |  | 134 |
Interest receivable |  |  | 17 |  |  | 48 |
Prepaid expenses and other |  |  | 90 |  |  | 232 |
|  | $ | 473 |  | $ | 701 |
Property and equipment, net: |  |  |  |  |  |  |
Equipment, furniture and fixtures and leasehold improvements |  | $ | 5,906 |  | $ | 5,646 |
Acquired software |  |  | 304 |  |  | 334 |
|  |  | 6,210 |  |  | 5,980 |
Less: Accumulated depreciation and amortization |  |  | (4,936) |  |  | (4,350) |
|  | $ | 1,274 |  | $ | 1,630 |
Intangible assets, net: Identifiable intangible assets were (dollar amounts in thousands):
|  | December 31, 2016 |
|  |  |  | Gross |  |  |  |  | Net |
|  | Life |  | Carrying |  | Accumulated |  | Carrying |
|  | (years) |  | Amount |  | Amortization |  | Amount |
Patent license |  | 7 |  |  | $ 780 |  |  | $ 557 |  |  | $ 223 |
|  | December 31, 2015 |
|  |  |  | Gross |  |  |  |  | Net |
|  | Life |  | Carrying |  | Accumulated |  | Carrying |
|  | (years) |  | Amount |  | Amortization |  | Amount |
Patent license |  | 7 |  |  | $ 780 |  |  | $ 446 |  |  | $ 334 |
Amortization expense has been included in research and development expense in the consolidated statements of operations and comprehensive loss. The estimated aggregate amortization expense to be recognized in future years is approximately $0.1 million annually for 2017 through 2018. Accrued expenses and other:
|  | December 31, |
|  | 2016 |  | 2015 |
|  | (in thousands) |
Accrued wages and employee benefits |  | $ | 1,051 |  | $ | 1,076 |
IC development and wafer costs |  |  | 598 |  |  | 921 |
Interest payable |  |  | 314 |  |  | — |
Professional fees and consulting |  |  | 282 |  |  | 158 |
Deferred revenue |  |  | 271 |  |  | 31 |
Employee stock purchase plan withholdings |  |  | 200 |  |  | 323 |
Capital lease obligation |  |  | — |  |  | 138 |
Other |  |  | 57 |  |  | 17 |
|  | $ | 2,773 |  | $ | 2,664 |
As of December 31, 2016 and 2015, the amounts in long-term liabilities comprised deferred rent.

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