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Revenue from Contracts with Customers
 12 Months Ended
Dec. 31, 2022
Revenue from Contract with Customer [Abstract]  
Revenue from Contracts with Customers Revenue from Contracts with Customers
Revenue by Source
Years Ended December 31,
20222021
Instruments$8,567,000 $5,887,000 
Consumables6,731,000 5,808,000 
Software5,127,000 991,000 
Total product revenue20,425,000 12,686,000 
Services and other 7,377,000 5,295,000 
Total revenue$27,802,000 $17,981,000 
The Company has revised the classification of its revenue between the categories in the table above for the December 31, 2021 income statement. In the December 31, 2021 income statement, “software” was included in “services and other.”
Revenue by Geographic Location
Years Ended December 31,
2022
2021
$%$%
Americas$13,862,000 50 %$9,329,000 52 %
EMEA8,960,000 32 %5,604,000 31 %
Asia Pacific4,980,000 18 %3,048,000 17 %
Total$27,802,000 100 %$17,981,000 100 %
The tables above provide revenue from contracts with customers by source and geographic location on a disaggregated basis. Americas consists of North America and South America. EMEA consists of Europe, the Middle East and Africa. Asia Pacific includes China, Japan, South Korea, Singapore, Australia and India. For the years ended December 31, 2022 and 2021, sales in the United States represented 42% and 46% of revenues, respectively. During the years ended December 31, 2022 and 2021, sales in China accounted for 14% and 11% of revenues, respectively. No other countries represented greater than 10% of revenue during the years ended December 31, 2022 and 2021. During the year ended December 31, 2022, the Company changed the presentation of its revenues from India to be included in the Asia Pacific geographic region. Prior to the year ended December 31, 2022, the Company had presented revenues from India in the EMEIA geographic region. The impact of this change on prior period disclosures is immaterial.