Note 5 - Property and Equipment

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2021

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

5. Property and Equipment

Property and equipment as shown on the accompanying Condensed Consolidated Balance Sheets is composed of the following as of March 31, 2022 and December 31, 2021:

	March 31, 2022			December 31, 2021
Equipment and furnishings	$	653,740		$	591,554
Leasehold improvements		115,605			115,605
Total property and equipment		769,345			707,159
Accumulated depreciation and amortization		(562,490	)		(550,221	)
Property and equipment, net	$	206,855		$	156,938

3. Property and Equipment

Property and equipment as shown on the accompanying Consolidated Balance Sheets is composed of the following as of December 31, 2021 and 2020:

	2021			2020
Equipment and furnishings	$	591,554		$	543,836
Leasehold improvements		115,605			115,605
Total property and equipment		707,159			659,441
Accumulated depreciation and amortization		(550,221	)		(511,700	)
Property and equipment, net	$	156,938		$	147,741

Depreciation expense was $38,521 and $19,656 during the years ended December 31, 2021 and 2020, respectively.