Note Q - Stockholders' Equity (Details Textual) - USD ($)	Feb. 26, 2021	Dec. 31, 2023	Dec. 05, 2023	Sep. 12, 2023	Jan. 05, 2023	Dec. 31, 2022
Common Stock, Shares Authorized (in shares)		80,000,000				80,000,000
Preferred Stock, Shares Authorized (in shares)		5,000,000				5,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.001	$ 0.001			$ 0.001
Minimum [Member]
Aggregated Offering Price				$ 35,000,000
Maximum [Member]
Aggregated Offering Price				$ 70,000,000
Initial ATM Offering [Member] | Raymond James & Associates, Inc. [Member]
Common Stock, Maximum Amount to be Sold					$ 185,000,000
Second ATM Offering [Member] | Raymond James & Associates, Inc. [Member]
Common Stock, Maximum Amount to be Sold	$ 35,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001
Agreement, Sales Agent Compensation, Percentage of Gross Sales	2.00%
Agreement, Maximum Reimbursement of Expenses in Connection with Registration of Shares	$ 10,000
Agreement, Maximum Reimbursement of Out-of-pocket Expenses	$ 30,000