v3.26.1
Note 6 - Common Stock and Preferred Stock - Information Related to Stock Warrants (Details)
 6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Outstanding, number of warrants (in shares) 5,780,955
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 4
Issued, number of warrants (in shares) 0
Issued, weighted average exercise price (in dollars per share) | $ / shares $ 0
Exercised, number of warrants (in shares) 0
Exercised, weighted average exercise price (in dollars per share) | $ / shares $ 0
Expired, number of warrants (in shares) 0
Expired, weighted average exercise price (in dollars per share) | $ / shares $ 0
Canceled, number of warrants (in shares) 0
Canceled, weighted average exercise price (in dollars per share) | $ / shares $ 0
Outstanding, number of warrants (in shares) 5,780,955
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 4
Outstanding, weighted average remaining life (Year) 3 years 2 months 12 days
Outstanding, intrinsic value | $ $ 579,962
Exercisable, number of warrants (in shares) 5,780,955
Exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 4
Exercisable, weighted average remaining life (Year) 3 years 2 months 12 days
Exercisable, intrinsic value | $ $ 579,962
Exercise Price, Outstanding (in dollars per share) | $ / shares $ 4
Warrants, Outstanding (in shares) 5,780,955
Warrants With Exercise Price 250 [Member]  
Outstanding, number of warrants (in shares) 2,071,293
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 2.5
Exercisable, number of warrants (in shares) 2,071,293
Exercisable, weighted average remaining life (Year) 3 years 2 months 12 days
Exercise Price, Outstanding (in dollars per share) | $ / shares $ 2.5
Warrants, Outstanding (in shares) 2,071,293
Warrants With Exercise Price 350 [Member]  
Outstanding, number of warrants (in shares) 2,885,246
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 3.05
Exercisable, number of warrants (in shares) 2,885,246
Exercisable, weighted average remaining life (Year) 3 years 7 months 6 days
Exercise Price, Outstanding (in dollars per share) | $ / shares $ 3.05
Warrants, Outstanding (in shares) 2,885,246
Warrants With Exercise Price 780 [Member]  
Outstanding, number of warrants (in shares) 177,490
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 7.8
Exercisable, number of warrants (in shares) 177,490
Exercisable, weighted average remaining life (Year) 1 year 8 months 12 days
Exercise Price, Outstanding (in dollars per share) | $ / shares $ 7.8
Warrants, Outstanding (in shares) 177,490
Warrants With Exercise Price 1200 [Member]  
Outstanding, number of warrants (in shares) 646,926
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 12
Exercisable, number of warrants (in shares) 646,926
Exercisable, weighted average remaining life (Year) 2 years
Exercise Price, Outstanding (in dollars per share) | $ / shares $ 12
Warrants, Outstanding (in shares) 646,926