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GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION | 12 Months Ended
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Dec. 31, 2021
GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION |
GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION | NOTE 20. GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION The following table summarizes sales and percentages of total sales from customers who individually accounted for 10% or more of our sales: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31, | ​
​ |  | 2021 | ​ |  | 2020 | ​ |  | 2019 | ​
Applied Materials, Inc. | ​ | $ | 296,369 |  | 20.4 | % | ​ | $ | 248,350 |  | 17.5 | % | ​ | $ | 164,724 |  | 20.9 | %
Lam Research Corporation | ​ |  | 147,385 |  | 10.1 | % | ​ |  | 141,778 |  | 10.0 | % | ​ |  | 88,251 |  | 11.2 | %
​ The following table summarizes the accounts receivable balances and percentages of the total accounts receivable from customers who individually accounted for 10% or more of accounts receivable: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, | ​ |  | December 31, | ​
​ | ​ | 2021 | ​ | ​ | 2020 | ​
Applied Materials, Inc. | ​ | $ | 42,425 |  | 17.9 | % |  | $ | 33,402 |  | 14.2 | %
Nidec Motor Corporation | ​ | ​ | * | ​ | * | % |  | $ | 24,344 | ​ | 10.4 | %
* Customer’s balance was less than 10% of total Our sales to Applied Materials, Inc. and Lam Research Corporation are reflected in the Semiconductor Equipment and Industrial and Medical market. Our sales to Nidec Motor Corporation are reflected in the Industrial and Medical market. For more information on our markets, see Note 3. Revenue. No other customer accounted for 10% or more of our sales or accounts receivable balances during these periods. The following table summarizes long-lived assets by geographic area: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2021 |  | 2020
United States | ​ | $ | 255,791 | ​ | $ | 253,115
Asia | ​ |  | 275,260 | ​ |  | 283,549
Europe | ​ |  | 57,144 | ​ |  | 60,847
Total | ​ | $ | 588,195 | ​ | $ | 597,511
​ Long-lived assets include property and equipment, operating lease right-of-use assets, goodwill, and intangible assets.

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