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Note 15 - Share-based Payments - Stock Option Transactions (Details) - $ / shares
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Equity Compensation Plan 2006 [Member]        
Outstanding, Number of shares (in shares) 1,043,963 1,062,214 1,122,700 1,132,632
Outstanding, Weighted average exercise price per share (in dollars per share) $ 45.11 $ 54.3 $ 45.86 $ 54.61
Granted, Number of shares (in shares) 106,814 174,450 106,814 176,950
Granted, Weighted average exercise price per share (in dollars per share) $ 19.27 $ 20.49 $ 19.27 $ 20.2
Exercised, Number of shares (in shares) 0 0 0 0
Exercised, Weighted average exercise price per share (in dollars per share) $ 0 $ 0 $ 0 $ 0
Forfeited, Number of shares (in shares) (27,540) (22,928) (45,768) (72,972)
Forfeited, Weighted average exercise price per share (in dollars per share) $ 22.6 $ 36.27 $ 29.83 $ 21.87
Expired, Number of shares (in shares) (77,018) (26,775) (137,527) (49,649)
Expired, Weighted average exercise price per share (in dollars per share) $ 63.17 $ 63.69 $ 61.91 $ 59.95
Outstanding, Number of shares (in shares) 1,046,219 1,186,961 1,046,219 1,186,961
Outstanding, Weighted average exercise price per share (in dollars per share) $ 39.82 $ 49.43 $ 39.82 $ 49.43
Options exercisable, Number of shares (in shares) 616,031 721,998 616,031 721,998
Options exercisable, Weighted average exercise price per share (in dollars per share) $ 53.52 $ 59.78 $ 53.52 $ 59.78
The 2022 Wavelo Equity Compensation Plan [Member]        
Outstanding, Number of shares (in shares) 15,740,802 16,485,256 15,887,997 16,333,233
Outstanding, Weighted average exercise price per share (in dollars per share) $ 1.32 $ 1.29 $ 1.27 $ 1.27
Granted, Number of shares (in shares) 163,000 389,500 389,000 919,500
Granted, Weighted average exercise price per share (in dollars per share) $ 1.78 $ 1.74 $ 1.78 $ 1.74
Exercised, Number of shares (in shares) (24,420) 0 (24,420) 0
Exercised, Weighted average exercise price per share (in dollars per share) $ 1.27 $ 0 $ 1.27 $ 0
Forfeited, Number of shares (in shares) (134,118) (81,682) (206,181) (301,954)
Forfeited, Weighted average exercise price per share (in dollars per share) $ 1.57 $ 1.34 $ 1.53 $ 1.33
Expired, Number of shares (in shares) (119,251) (13,228) (420,383) (170,933)
Expired, Weighted average exercise price per share (in dollars per share) $ 1.67 $ 1.27 $ 1.29 $ 1.27
Outstanding, Number of shares (in shares) 15,626,013 16,779,846 15,626,013 16,779,846
Outstanding, Weighted average exercise price per share (in dollars per share) $ 1.33 $ 1.3 $ 1.33 $ 1.3
Options exercisable, Number of shares (in shares) 12,351,945 9,602,704 12,351,945 9,602,704
Options exercisable, Weighted average exercise price per share (in dollars per share) $ 1.28 $ 1.27 $ 1.28 $ 1.27
The 2022 Ting Equity Compensation Plan [Member]        
Outstanding, Number of shares (in shares) 4,937,111 7,213,750 5,959,660 7,504,269
Outstanding, Weighted average exercise price per share (in dollars per share) $ 6 $ 6 $ 6 $ 6
Granted, Number of shares (in shares) 0 105,000 0 123,000
Granted, Weighted average exercise price per share (in dollars per share) $ 0 $ 6 $ 0 $ 6
Exercised, Number of shares (in shares) 0 0 0 0
Exercised, Weighted average exercise price per share (in dollars per share) $ 0 $ 0 $ 0 $ 0
Forfeited, Number of shares (in shares) 0 (284,730) (91,658) (447,980)
Forfeited, Weighted average exercise price per share (in dollars per share) $ 6 $ 6 $ 6
Expired, Number of shares (in shares) (219,342) (64,764) (1,150,233) (210,033)
Expired, Weighted average exercise price per share (in dollars per share) $ 6 $ 6 $ 6 $ 6
Outstanding, Number of shares (in shares) 4,717,769 6,969,256 4,717,769 6,969,256
Outstanding, Weighted average exercise price per share (in dollars per share) $ 6 $ 6 $ 6 $ 6
Options exercisable, Number of shares (in shares) 3,871,117 3,803,716 3,871,117 3,803,716
Options exercisable, Weighted average exercise price per share (in dollars per share) $ 6 $ 6 $ 6 $ 6