Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Property, Plant, and Equipment, Useful Life [Table Text Block]

	(in years)
Building		25	-	30
Machinery and equipment		3	-	15
Projects that prolong the life and increase efficiency of machinery		3	-	5
Light Machinery		5	-	10
Heavy Machinery		10	-	15
Office furniture and equipment		5	-	8
Intellectual Property		9	-	15
Leasehold improvements		5	-	8
Furniture and equipment at customer locations		1	-	3