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Equipment and Improvements | 12 Months Ended
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Dec. 31, 2019
Property Plant And Equipment [Abstract] |
Equipment and Improvements | 3. Equipment and Improvements Equipment and improvements consist of the following (in thousands):
|  | December 31, |
|  | 2019 |  |  | 2018 |
Computer hardware, software, and equipment |  | $ | 9,079 |  |  | $ | 14,658 |
Leasehold improvements |  |  | 2,808 |  |  |  | 5,316 |
Office furniture and fixtures |  |  | 1,017 |  |  |  | 962 |
Construction in progress |  |  | 494 |  |  |  | 25 |
|  |  | 13,398 |  |  |  | 20,961 |
Less accumulated depreciation and amortization |  |  | (11,289 | ) |  |  | (20,096 | )
Equipment and improvements, net |  | $ | 2,109 |  |  | $ | 865 |
Depreciation and amortization expense on equipment and improvements was $0.4 million and $0.5 million for the years ended December 31, 2019 and 2018, respectively.

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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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