v3.21.2
Revenue Recognition
 6 Months Ended
Jun. 30, 2021
Revenue from Contract with Customer [Abstract]  
Revenue Recognition Revenue Recognition
Revenue by Source
Three Months Ended June 30,Six Months Ended June 30,
2021202020212020
Instruments$1,158,000 $229,000 $2,040,000 $763,000 
Consumables1,338,000 711,000 2,505,000 1,160,000 
Total product revenue2,496,000 940,000 4,545,000 1,923,000 
Service and other1,360,000 242,000 2,479,000 395,000 
Total revenue$3,856,000 $1,182,000 $7,024,000 $2,318,000 

Revenue by Geographic Location
Three Months Ended June 30,Six Months Ended June 30,
2021202020212020
$%$%$%$%
North America$2,365,000 61 %$788,000 67 %$3,872,000 55 %$1,514,000 65 %
EMEIA940,000 25 %315,000 26 %2,518,000 36 %705,000 31 %
Asia Pacific551,000 14 %79,000 7 %634,000 9 %99,000 4 %
Total$3,856,000 100 %$1,182,000 100 %$7,024,000 100 %$2,318,000 100 %
The table above provides revenue from contracts with customers by source and geographic region (based on the customer’s billing address) on a disaggregated basis. North America consists of the United States and Canada. EMEIA consists of Europe, the Middle East, India and Africa. Asia Pacific includes China, Japan, South Korea, Singapore and Australia. For the three months ended June 30, 2021 and 2020, the United States represented 59.5% and 60.0% of total revenue, respectively. For the six months ended June 30, 2021 and 2020, the United States represented 53.1% and 63.0% of total revenue, respectively.
Remaining Performance Obligations

As of June 30, 2021, the estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied was $658,000. These remaining performance obligations primarily relate to extended warranty and support and maintenance obligations. The Company expects to recognize approximately 45.3% of this amount as revenue during the remainder of 2021, 38.1% in 2022, and 16.6% in 2023 and thereafter. Warranty revenue is included in Service and other revenue.
The Company recognized revenue of $90,000 and $106,000 during the three months ended June 30, 2021 and 2020, respectively, and revenue of $247,000 and $232,000 during the six months ended June 30, 2021 and 2020, respectively, which was included in the contract liability balance at the end of the previous year.