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PROPERTY AND EQUIPMENT | 12 Months Ended
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Dec. 31, 2020
PROPERTY AND EQUIPMENT |
PROPERTY AND EQUIPMENT | NOTE 3 - PROPERTY AND EQUIPMENT a. Composition of property and equipment grouped by major classifications is as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
(U.S. dollars in thousands) |  | 2019 |  | 2020
Laboratory equipment | ​ | $ | 16,849 | ​ | $ | 17,422
Furniture and computer equipment | ​ |  | 2,636 | ​ |  | 2,687
Leasehold improvements | ​ |  | 16,492 | ​ |  | 16,659
​ | ​ | $ | 35,977 | ​ | $ | 36,768
Less – accumulated depreciation and amortization | ​ |  | (30,704) | ​ |  | (31,923)
​ | ​ | $ | 5,273 | ​ | $ | 4,845
​ b. Depreciation in respect of property and equipment totaled approximately $1.7 million, $1.6 million and $1.3 million for the years ended December 31, 2018, 2019 and 2020, 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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