Note 5 - Revenues - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Balance at Beginning of Period | $ 733 | $ 790 | $ 582 | $ 567 |
| Balance at Beginning of Period | 3,500 | |||
| Unbilled Membership Dues | 769 | 858 | 1,383 | 1,528 |
| Billings | (465) | (538) | (928) | (985) |
| Balance at End of Period | 1,037 | 1,110 | 1,037 | 1,110 |
| Balance at End of Period | 5,700 | 5,700 | ||
| Balance at End of Period | 1,037 | 1,110 | 1,037 | 1,110 |
| Deferred Membership Dues [Member] | ||||
| Balance at Beginning of Period | 5,134 | 5,158 | 3,524 | 3,443 |
| Billings | 2,429 | 2,544 | 5,872 | 6,233 |
| Revenue Recognized | (1,829) | (1,839) | (3,662) | (3,813) |
| Balance at End of Period | 5,734 | 5,863 | 5,734 | 5,863 |
| Customer Advance Deposits [Member] | ||||
| Balance at Beginning of Period | 1,647 | 1,311 | 1,565 | 1,223 |
| Billings | 117 | 726 | 622 | 1,209 |
| Revenue Recognized | (115) | (725) | (538) | (1,120) |
| Balance at End of Period | $ 1,649 | $ 1,312 | $ 1,649 | $ 1,312 |