Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Operating Lease (Details Textual)

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Note 9 - Operating Lease (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Operating Lease, Cost $ 26,000 $ 16,000
Variable Lease, Cost $ 15,000 $ 11,000