Note 10 - Bonds Payable, Loans Payable, and Interest (Tables)
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6 Months Ended |
Jun. 30, 2026 |
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| Notes Tables |
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| Debt and Finance Lease Obligation [Table Text Block] |
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| | | December 31, 2025 | |
| | Maturity Dates | | Contractual Interest Rates | | | Principal Amount | | | Carrying Value | | | Principal Amount | | | Carrying Value | |
| Bonds payable: | | | | | | | | | | | | | | | | | | | | | |
| Series 2021 Bonds | July 2036 - July 2054 | | | 4.00 - 4.25% | | | $ | 166,340 | | | $ | 162,909 | | | $ | 166,340 | | | $ | 162,815 | |
| Series 2026 Bonds | Subject to Mandatory Tender January 2031 | | | 6.00% | | | | 150,000 | | | | 146,858 | | | | - | | | | - | |
| Total bonds payable | | | | | | | 316,340 | | | | 309,767 | | | | 166,340 | | | | 162,815 | |
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| Loans payable and finance leases: | | | | | | | | | | | | | | | | | | | | | |
| Term Loan Facility | September 2030 | | | 80% of (SOFR + 0.1%) + 2.00% | | | | 69,796 | | | | 69,796 | | | | - | | | | - | |
| Yorkville Promissory Note 1 | June 2027 | | | 7.75% | | | | 15,000 | | | | 14,726 | | | | 15,000 | | | | 14,430 | |
| Yorkville Promissory Note 2 | June 2027 | | | 7.75% | | | | 10,000 | | | | 9,795 | | | | - | | | | - | |
| Vista Loan | December 2035 | | | Prime + 0.25% | | | | 6,021 | | | | 5,917 | | | | 6,090 | | | | 5,980 | |
| Equipment Loan | August 2026 | | | 3.79% | | | | 2 | | | | 2 | | | | 9 | | | | 9 | |
| Finance Leases | August 2026 - July 2027 | | | 6.82% | | | | 96 | | | | 96 | | | | 125 | | | | 125 | |
| Total loans payable and finance leases | | | | | | | 100,915 | | | | 100,332 | | | | 21,224 | | | | 20,544 | |
| Total bonds and loans payable | | | | | | $ | 417,255 | | | $ | 410,099 | | | $ | 187,564 | | | $ | 183,359 | |
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| Schedule of Maturities of Long-Term Debt [Table Text Block] |
| Year Ending December 31, | | Bonds Payable | | | Loans Payable | |
| 2026 (remainder of year) | | $ | - | | | $ | 12,542 | |
| 2027 | | | - | | | | 12,591 | |
| 2028 | | | - | | | | 98 | |
| 2029 | | | - | | | | 105 | |
| 2030 | | | - | | | | 69,909 | |
| Thereafter | | | 316,340 | | | | 5,574 | |
| Total | | $ | 316,340 | | | $ | 100,819 | |
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| Interest Expense, Debt [Table Text Block] |
| | | Three months ended | | | Six months ended | |
| | | June 30, 2026 | | | June 30, 2025 | | | June 30, 2026 | | | June 30, 2025 | |
| Interest | | $ | 5,040 | | | $ | 1,868 | | | $ | 8,729 | | | $ | 3,741 | |
| Commitment fees | | | 227 | | | | - | | | | 489 | | | | - | |
| Accretion of bond premium and amortization of debt issuance costs | | | 758 | | | | 49 | | | | 1,443 | | | | 98 | |
| Total interest incurred | | | 6,025 | | | | 1,917 | | | | 10,661 | | | | 3,839 | |
| Less: capitalized interest | | | (4,688 | ) | | | (1,784 | ) | | | (8,028 | ) | | | (3,568 | ) |
| Interest expense | | $ | 1,337 | | | $ | 133 | | | $ | 2,633 | | | $ | 271 | |
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| Schedule of Derivative Assets at Fair Value [Table Text Block] |
| Balance sheet location: | | June 30, 2026 | | | December 31, 2025 | |
| Asset derivatives: | | | | | | | | |
| Accounts receivable, prepaid expenses, and other assets | | $ | 5 | | | $ | 2 | |
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