Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2024

Accounting Policies [Abstract]

Schedule of Basic and Diluted Net Loss Per Common Share

The following table presents the calculation of basic and diluted net loss per common share (in thousands, except share and per share amounts):

	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Basic and diluted net loss per common share:
Net loss available to common stockholders - basic and diluted	$	(4,080	)	$	(3,393	)	$	(7,607	)	$	(5,733	)
Weighted average shares used in calculating basic and diluted net loss per common share		1,228,453			427,862			1,000,367			357,572
Basic and diluted net loss per common share	$	(3.32	)	$	(7.93	)	$	(7.60	)	$	(16.03	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following potentially dilutive securities were excluded from the calculation of diluted net loss per share because their effects would be anti-dilutive:

	June 30,
	2024		2023
Stock options		42,329		31,128
Restricted stock units		3,728		20,681
Warrants for common stock		1,245,650		267,724
Series A Convertible Preferred Stock		8		8
Total		1,291,715		319,541