Note 5 - Property and Equipment

6 Months Ended

Jun. 30, 2023

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

5.        Property and Equipment

Property and equipment consist of the following (in thousands):

	June 30, 2023			December 31, 2022
Equipment	$	5,148		$	5,137
Leasehold improvements		1,612			1,612
Software		364			364
Furniture and fixtures		22			22
Total property and equipment–at cost		7,146			7,135
Less: Accumulated depreciation		(5,942	)		(5,568	)
Property and equipment, net	$	1,204		$	1,567

Depreciation and amortization expense for the six months ended June 30, 2023 and 2022 was $0.4 million.