Note J - Net Loss Per Share - Anti-dilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Antidilutive securities (in shares)	15,333,032	11,280,229	15,333,032	11,280,229
Share-Based Payment Arrangement [Member]
Antidilutive securities (in shares)	9,849,495	7,027,739	9,849,495	7,027,739
Warrants to Purchase Common Stock [Member]
Antidilutive securities (in shares)	5,483,537	4,252,490	5,483,537	4,252,490