Note 4 - Equipment and Leasehold Improvements

12 Months Ended

Dec. 31, 2023

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

4. Equipment and Leasehold Improvements

Equipment and leasehold improvements consisted of the following:

	Years Ended December 31,
	2023			2022			Estimated Useful Life (in years)
Machinery and equipment(1)	$	7,705,000		$	6,610,000			2.5	-	10
Computer and software		631,000			631,000			2	-	5
Office equipment		270,000			256,000			5	-	10
Leasehold improvements		1,555,000			932,000			5 years or remaining lease term
Total equipment		10,159,000			8,429,000
Less accumulated depreciation		(7,575,000	)		(7,175,000	)
Total equipment and leasehold improvements, net	$	2,586,000		$	1,254,000

_________

⁽¹⁾ Includes $131,000 and $391,000 for cost related to construction in progress for the years ended December 31, 2023 and 2022, respectively.

 Depreciation expense for the years ended December 31, 2023 and 2022 was $400,000 and $387,000, respectively.