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Note 5 - Leases (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] |
Year ending December 31, |  | Operating Leases |
2025 (excluding the nine-months ended September 30, 2025) |  | $ | 238,000 |
2026 |  |  | 509,000 |
2027 |  |  | 518,000 |
2028 |  |  | 528,000 |
2029 |  |  | 537,000 |
Thereafter |  |  | 5,241,000 |
Total lease payments |  |  | 7,571,000 |
Less imputed interest |  |  | (3,139,000 | )
Total |  | $ | 4,432,000 |
Lease, Cost [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Lease cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating lease cost |  | $ | 76,000 |  |  | $ | 133,000 |  |  | $ | 313,000 |  |  | $ | 219,000 |
Sublease income |  |  | (15,000 | ) |  |  | (15,000 | ) |  |  | (45,000 | ) |  |  | (24,000 | )
Total lease cost |  | $ | 61,000 |  |  | $ | 118,000 |  |  | $ | 268,000 |  |  | $ | 195,000 |
Other information |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash paid for amounts included in the measurement of lease liabilities - Operating leases |  | $ | 123,000 |  |  | $ | 133,000 |  |  | $ | 921,000 |  |  | $ | 219,000 |
Weighted-average remaining lease term - Operating leases in years |  |  | 13.31 |  |  |  | 7.85 |  |  |  | 13.31 |  |  |  | 7.85 |
Weighted-average discount rate - Operating leases |  |  | 8.25 | % |  |  | 8.00 | % |  |  | 8.25 | % |  |  | 8.00 | %

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6 + Details
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