Note 4 - Property and Equipment

3 Months Ended

Mar. 31, 2022

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

4. PROPERTY AND EQUIPMENT

Property and equipment is summarized as follows:

		March 31, 2022
	(unaudited)			December 31, 2021
Production assets	$	1,802,749		$	1,616,308
Computer equipment and software		650,552			647,852
Lab equipment		3,240,462			103,427
Office furniture and fixtures		51,354			51,354
Leasehold improvements		123,109			123,109
Construction work in progress		91,790			63,750
		5,960,016			2,605,800
Less accumulated depreciation		(1,829,426	)		(1,578,488	)
	$	4,130,590		$	1,027,312

The Company recorded depreciation and amortization expense of $0.3 million and $0.1 million for the three months ended March 31, 2022, and 2021, respectively, and $0.4 million for the year ended December 31, 2021.