Note 6 - Unearned Revenue - Schedule of Unearned Revenue (Details) - USD ($) $ in Thousands |
Sep. 30, 2022 |
Dec. 31, 2021 |
Sep. 30, 2021 |
|---|---|---|---|
| Unearned Revenue | $ 2,649,066 | $ 2,595,085 | $ 3,032,192 |
| CALIFORNIA | |||
| Unearned Revenue | 801,449 | 771,759 | 855,765 |
| Central [Member] | |||
| Unearned Revenue | 1,299,281 | 1,334,901 | 1,468,341 |
| Mountain [Member] | |||
| Unearned Revenue | $ 548,336 | $ 488,425 | $ 708,086 |