Note 6 - Trade Inventory (Details Textual)
$ in Millions
|12 Months Ended|
Dec. 31, 2021
|Renin Holdings LLC[Member]|
|Production Related Impairments or Charges, Total||$ 2.4|
Nonrecurring impairment charges related to the write-off of production-related equipment and inventory. This tag is used when an Entity charges this cost to cost of goods sold.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef