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Property and Equipment | 6 Months Ended
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Jun. 30, 2021
Property Plant And Equipment [Abstract] |
Property and Equipment | Note 6. Property and Equipment Depreciation and amortization of property and equipment is calculated on the straight-line method based on the shorter of the estimated useful life or the term of the lease for tenant improvements and three to fifteen years for all other property and equipment. Property and equipment consist of the following (in thousands):
|  | June 30, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
Computers and software |  | $ | 607 |  |  | $ | 596 |
Furniture, fixtures, and equipment |  |  | 400 |  |  |  | 400 |
Manufacturing and testing equipment |  |  | 4,613 |  |  |  | 3,874 |
Construction in process |  |  | 22 |  |  |  | 120 |
Leasehold improvements |  |  | 932 |  |  |  | 932 |
Property and equipment, gross |  |  | 6,574 |  |  |  | 5,922 |
Less accumulated depreciation |  |  | (3,803 | ) |  |  | (3,545 | )
Property and equipment, net |  | $ | 2,771 |  |  | $ | 2,377 |
Depreciation expense was $0.1 million for both the three months ended June 30, 2021 and 2020, and $0.3 million and $0.2 million for the six months ended June 30, 2021 and 2020, respectively.

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- Definition The entire disclosure for intangible assets and 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 350 -URI http://asc.fasb.org/topic&trid=2144416 Reference 2: 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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