Note Q - Stockholders' Equity - Stock Sold in Offering (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended						12 Months Ended			34 Months Ended
	Nov. 30, 2023	Oct. 31, 2023	Sep. 30, 2023	Aug. 31, 2023	Jun. 30, 2023	Feb. 28, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Net Proceeds							$ 68,984	$ 1,238	$ 15,397
Raymond James & Associates, Inc. [Member] | Second ATM Offering [Member]
Weighted Average Per Share Price (in dollars per share)	$ 12.572	$ 11.003	$ 10.184	$ 11.645	$ 4.036	$ 2.811
Number of Shares Sold (in shares)	2,068	1,043	892	1,150	2,497	158				7,808
Net Proceeds	$ 25,473	$ 11,244	$ 8,901	$ 13,124	$ 9,879	$ 436				$ 69,057
Compensation to Distribution Agent	$ 520	$ 229	$ 182	$ 268	$ 202	$ 9				$ 1,410