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v3.23.2

Note 2 - Revenue (Tables) | 6 Months Ended
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Jun. 30, 2023
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three months ended |  |  | Six months ended |
|  | June 30, |  |  | June 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Telecommunication products |  | $ | 1,066 |  |  | $ | 1,313 |  |  | $ | 2,191 |  |  | $ | 2,511 |
Display products |  |  | 725 |  |  |  | 759 |  |  |  | 1,334 |  |  |  | 1,665 |
Specialty glass products |  |  | 420 |  |  |  | 485 |  |  |  | 824 |  |  |  | 978 |
Environmental substrate and filter products |  |  | 433 |  |  |  | 336 |  |  |  | 840 |  |  |  | 737 |
Life science products |  |  | 222 |  |  |  | 304 |  |  |  | 469 |  |  |  | 611 |
Polycrystalline silicon products |  |  | 258 |  |  |  | 306 |  |  |  | 535 |  |  |  | 588 |
All other products |  |  | 119 |  |  |  | 112 |  |  |  | 228 |  |  |  | 205 |
Total revenue |  | $ | 3,243 |  |  | $ | 3,615 |  |  | $ | 6,421 |  |  | $ | 7,295 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-5 + Details
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