Note 10 - Other Assets  | 
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2023  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Assets Disclosure [Text Block] | 
   
 
 Other assets consist of the following (in thousands): 
 
 
 (1) See Footnote 12. 
 (2) Deposits for equipment to be acquired and utilized at the Company's Phase One build-out of our recycling campus at TRIC. 
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- References No definition available. 
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- Definition The entire disclosure for other assets. This disclosure includes other current assets and other noncurrent assets. No definition available. 
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