Note 5 - Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Property, Plant and Equipment [Table Text Block]

	2021			2020
Land	$	2,220,000		$	6,929,000
Buildings		6,634,039			15,917,000
Building improvements		5,842,989			8,141,791
Machinery and equipment		3,289,860			3,340,005
Furniture and fixtures		546,765			613,765
Computer equipment		504,037			493,349
Software		431,331			435,593
Transportation equipment		114,511			114,511
Lab equipment		1,992,179			1,992,179
Construction in Progress		127,106			93,936
Totals at cost	$	21,702,817		$	38,071,129
Less: Accumulated depreciation and amortization		(9,441,496	)		(9,227,566	)
Property, plant and equipment, net	$	12,261,321		$	28,843,563
Depreciation and amortization expense (1)	$	742,287		$	1,389,145