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Note 15 - Stock Option Plans - Stock Option Transactions (Details) - $ / shares
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Equity Compensation Plan 2006 [Member]      
Outstanding, Number of shares (in shares) 1,132,632 1,036,748 904,151
Outstanding, Weighted average exercise price per share (in dollars per share) $ 54.61 $ 59.97 $ 64.36
Granted, Number of shares (in shares) 323,358 172,305 262,980
Granted, Weighted average exercise price per share (in dollars per share) $ 21.02 $ 25.04 $ 42.15
Exercised, Number of shares (in shares) 0 0 (40,459)
Exercised, Weighted average exercise price per share (in dollars per share) $ 0 $ 0 $ 31.95
Forfeited, Number of shares (in shares) (135,098) (41,126) (55,234)
Forfeited, Weighted average exercise price per share (in dollars per share) $ 27.76 $ 58.89 $ 68.11
Expired, Number of shares (in shares) (198,192) (35,295) (34,690)
Expired, Weighted average exercise price per share (in dollars per share) $ 56.86 $ 68.58 $ 58.92
Outstanding, Number of shares (in shares) 1,122,700 1,132,632 1,036,748
Outstanding, Weighted average exercise price per share (in dollars per share) $ 45.86 $ 54.61 $ 59.97
Options exercisable, Number of shares (in shares) 602,505 731,945 520,679
Options exercisable, Weighted average exercise price per share (in dollars per share) $ 58.58 $ 61.05 $ 62.74
The 2022 Wavelo Equity Compensation Plan [Member]      
Outstanding, Number of shares (in shares) 16,333,233 15,975,528  
Outstanding, Weighted average exercise price per share (in dollars per share) $ 1.28 $ 1.27  
Granted, Number of shares (in shares) 1,415,000 865,000 15,975,528
Granted, Weighted average exercise price per share (in dollars per share) $ 1.75 $ 1.37 $ 1.27
Exercised, Number of shares (in shares) (33,750) 0 0
Exercised, Weighted average exercise price per share (in dollars per share) $ 1.27 $ 0  
Forfeited, Number of shares (in shares) (1,430,832) (451,708)  
Forfeited, Weighted average exercise price per share (in dollars per share) $ 1.28 $ 1.27  
Expired, Number of shares (in shares) (395,654) (55,587)  
Expired, Weighted average exercise price per share (in dollars per share) $ 1.27 $ 1.27  
Outstanding, Number of shares (in shares) 15,887,997 16,333,233 15,975,528
Outstanding, Weighted average exercise price per share (in dollars per share) $ 1.28 $ 1.28 $ 1.27
Options exercisable, Number of shares (in shares) 11,009,285 7,752,114 15,975,528
Options exercisable, Weighted average exercise price per share (in dollars per share) $ 1.27 $ 1.27 $ 1.27
The 2022 Ting Equity Compensation Plan [Member]      
Outstanding, Number of shares (in shares) 7,504,269    
Outstanding, Weighted average exercise price per share (in dollars per share) $ 6    
Granted, Number of shares (in shares) 123,000 8,044,000  
Granted, Weighted average exercise price per share (in dollars per share) $ 6 $ 6  
Exercised, Number of shares (in shares) 0    
Exercised, Weighted average exercise price per share (in dollars per share) $ 0    
Forfeited, Number of shares (in shares) (1,382,845) (438,381)  
Forfeited, Weighted average exercise price per share (in dollars per share) $ 6 $ 6  
Expired, Number of shares (in shares) (284,764) (101,350)  
Expired, Weighted average exercise price per share (in dollars per share) $ 6 $ 6  
Outstanding, Number of shares (in shares) 5,959,660 7,504,269  
Outstanding, Weighted average exercise price per share (in dollars per share) $ 6 $ 6  
Options exercisable, Number of shares (in shares) 4,462,430 3,156,281  
Options exercisable, Weighted average exercise price per share (in dollars per share) $ 6 $ 6