| PROPERTY AND EQUIPMENT, NET |
PROPERTY AND EQUIPMENT, NETProperty and equipment, net consisted of the following: | | | | | | | | | | | | | December 31, | | 2022 | | 2021 | | Land | $ | 1,725 | | | $ | 1,645 | | | Building and building improvements | 5,729 | | | 4,078 | | | Computer equipment and software | 3,319 | | | 2,541 | | | Office and other equipment | 4,328 | | | 1,958 | | | Instruments | 43,596 | | | 34,094 | | | Sample inventory | 2,674 | | | 2,483 | | | Construction in progress | 3,719 | | | 4,805 | | | 65,090 | | | 51,604 | | | Less: accumulated depreciation | (30,804) | | | (23,089) | | | Total property and equipment, net | $ | 34,286 | | | $ | 28,515 | |
Depreciation expense is included in general and administrative expenses and was $7,121, $6,148 and $4,660 for the years ended December 31, 2022, 2021 and 2020, respectively.
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