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Balance Sheet Details | 9 Months Ended
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Sep. 30, 2019
Balance Sheet Details [Abstract] |
Balance Sheet Details | 7. Balance Sheet Details Property and Equipment Property and equipment as of September 30, 2019 and December 31, 2018 consisted of the following:
|  | September 30, 2019 |  | December 31, 2018
Laboratory equipment |  | $ | 7,349,000 |  | $ | 6,990,000
Furniture and fixtures |  |  | 627,000 |  |  | 627,000
Office and computer equipment |  |  | 319,000 |  |  | 260,000
Leasehold improvements |  |  | 3,325,000 |  |  | 3,266,000
Total |  |  | 11,620,000 |  |  | 11,143,000
Less: accumulated depreciation |  |  | (9,090,000) |  |  | (7,894,000)
Property and equipment, net |  | $ | 2,530,000 |  | $ | 3,249,000
Depreciation expense totaled $365,000 and $336,000 for the three month periods ended September 30, 2019 and 2018, respectively. Depreciation expense totaled $1,049,000 and $1,139,000 for the nine month periods ended September 30, 2019 and 2018, respectively.

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- References No definition available. + Details
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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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