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Note 13 - Revenues (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Year Ended December 31, |
(in thousands) |  | 2023 |  |  | 2022 |
Instruments, equipment, software and accessories |  | $ | 105,716 |  |  | $ | 108,165 |
Service, maintenance and warranty contracts |  |  | 6,534 |  |  |  | 5,170 |
Total revenues |  | $ | 112,250 |  |  | $ | 113,335 |
|  | Year Ended December 31, |
(in thousands) |  | 2023 |  |  | 2022 |
Goods and services transferred at a point in time |  | $ | 108,558 |  |  | $ | 111,927 |
Goods and services transferred over time |  |  | 3,692 |  |  |  | 1,408 |
Total revenues |  | $ | 112,250 |  |  | $ | 113,335 |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Year Ended December 31, |
(in thousands) |  | 2023 |  |  | 2022 |
United States |  | $ | 48,205 |  |  | $ | 49,912 |
Europe |  |  | 32,801 |  |  |  | 30,687 |
Greater China |  |  | 18,488 |  |  |  | 16,393 |
Rest of the world |  |  | 12,756 |  |  |  | 16,343 |
Total revenues |  | $ | 112,250 |  |  | $ | 113,335 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | December 31, |  |  |  |  |  |  | December 31, |  |  |  |  |
(in thousands) |  | 2023 |  |  | 2022 |  |  | Change |  |  | 2022 |  |  | 2021 |  |  | Change |
Service contracts |  | $ | 2,849 |  |  | $ | 1,530 |  |  | $ | 1,319 |  |  |  | 1,530 |  |  | $ | 1,976 |  |  | $ | (446 | )
Customer advances |  |  | 1,659 |  |  |  | 1,840 |  |  |  | (181 | ) |  |  | 1,840 |  |  |  | 2,290 |  |  |  | (450 | )
Total contract liabilities |  | $ | 4,508 |  |  | $ | 3,370 |  |  | $ | 1,138 |  |  |  | 3,370 |  |  | $ | 4,266 |  |  | $ | (896 | )
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
|  | December 31, |
(in thousands) |  | 2023 |  |  | 2022 |
Balance, beginning of period |  | $ | 191 |  |  | $ | 136 |
Provision for expected credit losses |  |  | 29 |  |  |  | 62 |
Charge-offs and other |  |  | (60 | ) |  |  | (7 | )
Balance, end of period |  | $ | 160 |  |  | $ | 191 |
Schedule of Product Warranty Liability [Table Text Block] |
|  | Year Ended December 31, |
(in thousands) |  | 2023 |  |  | 2022 |
Balance at December 31, 2022 |  | $ | 268 |  |  | $ | 240 |
Expense |  |  | 381 |  |  |  | 408 |
Warranty claims |  |  | (313 | ) |  |  | (380 | )
Balance at December 31, 2023 |  | $ | 336 |  |  | $ | 268 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-8 + Details
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