Note 2 - Significant Accounting Policies and Basis of Presentation (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Property Plant And Equipment Estimated Useful Lives [Table Text Block]

Building & building equipment (years)	20	–	39
Machinery and equipment (years)	3	–	33
Transportation equipment (years)	5	–	33
Other (years)	5	–	33