Note 6 - Accrued Expenses

6 Months Ended

Jun. 30, 2022

Notes to Financial Statements

Accounts Payable and Accrued Liabilities Disclosure [Text Block]

6.     Accrued Expenses

Accrued expenses consist of the following (in thousands):

	June 30,		December 31,
	2022		2021
Compensation and benefits	$	845	$	1,601
Project expenses		1,651		704
Accrued milestone		—		6,000
Marketable securities not settled		513		—
Other		292		470
Total accrued expenses	$	3,301	$	8,775