Note 5 - Concentration of Risk - Risk Exposure (Details) |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2022
USD ($)
|
Dec. 31, 2021
USD ($)
|
|
| Portion of Accounts Receivable | $ 4,300,000 | $ 1,148,000 | $ 126,000 |
| Customer Concentration Risk [Member] | Accounts Receivable [Member] | |||
| Number of Significant Customers | 3 | 2 | |
| Customer Concentration Risk [Member] | Accounts Receivable [Member] | Three Customers [Member] | |||
| % Total Revenue from Operations | 75.00% | ||
| Portion of Accounts Receivable | $ 4,200 | ||
| Customer Concentration Risk [Member] | Accounts Receivable [Member] | Two Customers [Member] | |||
| Portion of Accounts Receivable | $ 0 | ||
| Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Two Customers [Member] | |||
| % Total Revenue from Operations | 60.40% | ||