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Note 3 - Revenues (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(in thousands) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Instruments, equipment, software and accessories |  | $ | 18,582 |  |  | $ | 20,543 |  |  | $ | 56,625 |  |  | $ | 64,594 |
Service, maintenance and warranty contracts |  |  | 2,009 |  |  |  | 1,427 |  |  |  | 6,190 |  |  |  | 4,985 |
Total revenues |  | $ | 20,591 |  |  | $ | 21,970 |  |  | $ | 62,815 |  |  | $ | 69,579 |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(in thousands) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Goods and services transferred at a point in time |  | $ | 19,541 |  |  | $ | 21,119 |  |  | $ | 59,755 |  |  | $ | 66,845 |
Goods and services transferred over time |  |  | 1,050 |  |  |  | 851 |  |  |  | 3,060 |  |  |  | 2,734 |
Total revenues |  | $ | 20,591 |  |  | $ | 21,970 |  |  | $ | 62,815 |  |  | $ | 69,579 |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
(in thousands) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Americas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 9,254 |  |  |  | 9,706 |  |  | $ | 28,737 |  |  | $ | 31,495 |
Americas - Other |  |  | 1,185 |  |  |  | 1,211 |  |  |  | 2,436 |  |  |  | 2,635 |
Europe, Middle East and Africa |  |  | 6,610 |  |  |  | 6,620 |  |  |  | 19,228 |  |  |  | 19,842 |
Asia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
China |  |  | 2,145 |  |  |  | 2,639 |  |  |  | 7,330 |  |  |  | 10,149 |
Asia - Other |  |  | 1,397 |  |  |  | 1,794 |  |  |  | 5,084 |  |  |  | 5,458 |
|  | $ | 20,591 |  |  | $ | 21,970 |  |  | $ | 62,815 |  |  | $ | 69,579 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | September 30, |  |  | December 31, |  |  |  |  |  |  |  |  |
(in thousands) |  | 2025 |  |  | 2024 |  |  | Change |  |  | Percentage |
Deferred revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service, maintenance and warranty contracts |  | $ | 1,414 |  |  | $ | 1,560 |  |  | $ | (146 | ) |  |  | -9 | %
Installation and training |  |  | 477 |  |  |  | 806 |  |  |  | (329 | ) |  |  | -41 | %
Customer advances |  |  | 988 |  |  |  | 1,440 |  |  |  | (452 | ) |  |  | -31 | %
Total short-term contract liabilities |  |  | 2,879 |  |  |  | 3,806 |  |  |  | (927 | ) |  |  | -24 | %
Long-term service, maintenance and warranty contracts |  |  | 288 |  |  |  | - |  |  |  | 288 |  |  |  | 100 | %
Total contract liabilities |  | $ | 3,167 |  |  | $ | 3,806 |  |  | $ | (639 | ) |  |  | -17 | %
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] |
|  | Remaining Performance Obligations |
(in thousands) |  | 2025 * |  |  | 2026 |  |  | 2027 |  |  | 2028 |  |  | 2029 |  |  | Thereafter |  |  | Total |
Service, maintenance and warranty contracts |  | $ | 1,194 |  |  | $ | 450 |  |  | $ | 38 |  |  | $ | 15 |  |  | $ | 5 |  |  | $ | - |  |  | $ | 1,702 |
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
|  | Nine Months Ended September 30, |
(in thousands) |  | 2025 |  |  | 2024 |
Balance, beginning of period |  | $ | 215 |  |  | $ | 160 |
Provision for expected credit losses |  |  | (29 | ) |  |  | 13 |
Charge-offs and other |  |  | (24 | ) |  |  | 1 |
Balance, end of period |  | $ | 162 |  |  | $ | 174 |
Schedule of Product Warranty Liability [Table Text Block] |
|  | Nine Months Ended September 30, |
(in thousands) |  | 2025 |  |  | 2024 |
Balance, beginning of period |  | $ | 318 |  |  | $ | 336 |
Provision for warranties |  |  | 131 |  |  |  | 307 |
Warranty claims |  |  | (145 | ) |  |  | (228 | )
Balance, end of period |  | $ | 304 |  |  | $ | 415 |

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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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