Annual report [Section 13 and 15(d), not S-K Item 405]

Note 8 - Stock-based Incentive Plans - Warrants Activity (Details)

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Note 8 - Stock-based Incentive Plans - Warrants Activity (Details) - Stock Warrants [Member]
12 Months Ended
Dec. 31, 2024
$ / shares
shares
Outstanding, number of warrants (in shares) | shares 31,000
Outstanding, exercise price per shares, warrants (in dollars per share) | $ / shares $ 49.21
Granted, number of warrants (in shares) | shares 0
Granted, exercise price per shares, warrants (in dollars per share) | $ / shares $ 0
Expired, number of warrants (in shares) | shares 0
Expired, exercise price per shares, warrants (in dollars per share) | $ / shares $ 0
Outstanding, number of warrants (in shares) | shares 31,000
Outstanding, exercise price per shares, warrants (in dollars per share) | $ / shares $ 49.21
Outstanding, remaining contractual term, warrants (Year) 2 years 8 months 12 days
Vested and exercisable, number of warrants (in shares) | shares 31,000
Vested and exercisable, exercise price per shares, warrants (in dollars per share) | $ / shares $ 49.21
Vested and exercisable, remaining contractual term, warrants (Year) 3 years 8 months 12 days