Note 4 - Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]

4. Accrued expenses and other current liabilities

Accrued expenses and other current liabilities at December 31, 2022 and 2021 consist of the following components (in thousands):

	December 31,
	2022		2021
Accrued research and development	$	1,337	$	1,005
Accrued payroll and bonuses		748		606
Accrued legal, regulatory, professional and other		437		442
Operating lease liability - current		116		96
Accrued liabilities due to related party		86		109
Total accrued expenses and other current liabilities	$	2,724	$	2,258

Additionally, accounts payable includes $64,000 and $48,000 as of December 31, 2022 and 2021, respectively, for related party payables.