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Note 16 - Revenues (Tables) | 3 Months Ended
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Mar. 31, 2020
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended March 31, 2020
|  | (in thousands)
|  | United States |  | United Kingdom |  | Germany |  | Rest of the world |  | Total
Instruments, equipment, software and accessories |  | $ | 15,956 |  |  | $ | 2,507 |  |  | $ | 2,573 |  |  | $ | 1,901 |  |  | $ | 22,937 |
Service, maintenance and warranty contracts |  |  | 575 |  |  |  | 204 |  |  |  | 39 |  |  |  | 16 |  |  |  | 834 |
Total revenues |  | $ | 16,531 |  |  | $ | 2,711 |  |  | $ | 2,612 |  |  | $ | 1,917 |  |  | $ | 23,771 |
|  | Three Months Ended March 31, 2019
|  | (in thousands)
|  | United States |  | United Kingdom |  | Germany |  | Rest of the world |  | Total
Instruments, equipment, software and accessories |  | $ | 18,671 |  |  | $ | 3,129 |  |  | $ | 2,913 |  |  | $ | 2,044 |  |  | $ | 26,757 |
Service, maintenance and warranty contracts |  |  | 1,143 |  |  |  | 190 |  |  |  | 97 |  |  |  | 15 |  |  |  | 1,445 |
Total revenues |  | $ | 19,814 |  |  | $ | 3,319 |  |  | $ | 3,010 |  |  | $ | 2,059 |  |  | $ | 28,202 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | Three Months Ended March 31, 2020
|  | (in thousands)
|  | Service Contracts |  | Customer Advances |  | Total
Balance, beginning of period |  | $ | 1,587 |  |  | $ | 2,362 |  |  | $ | 3,949 |
Deferral of revenue |  |  | 308 |  |  |  | 223 |  |  |  | 531 |
Recognition of deferred revenue |  |  | (499 | ) |  |  | (322 | ) |  |  | (821 | )
Effect of foreign currency translation |  |  | 14 |  |  |  | - |  |  |  | 14 |
Balance, end of period |  | $ | 1,410 |  |  | $ | 2,263 |  |  | $ | 3,673 |
|  | Three Months Ended March 31, 2019
|  | (in thousands)
|  | Service Contracts |  | Customer Advances |  | Total
Balance, beginning of period |  | $ | 1,659 |  |  | $ | 2,161 |  |  | $ | 3,820 |
Deferral of revenue |  |  | 845 |  |  |  | 111 |  |  |  | 956 |
Recognition of deferred revenue |  |  | (848 | ) |  |  | (223 | ) |  |  | (1,071 | )
Effect of foreign currency translation |  |  | 10 |  |  |  | - |  |  |  | 10 |
Balance, end of period |  | $ | 1,666 |  |  | $ | 2,049 |  |  | $ | 3,715 |
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
|  | Three Months Ended March 31,
|  | 2020 |  | 2019
|  | (in thousands)
Balance, beginning of period |  | $ | 325 |  |  | $ | 332 |
Bad debt expense |  |  | 4 |  |  |  | 348 |
Charge-offs and other recoveries |  |  | (31 | ) |  |  | (337 | )
Effect of foreign currency translation |  |  | (1 | ) |  |  | (2 | )
Balance, end of period |  | $ | 297 |  |  | $ | 341 |

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