Note 14 - TotalStone Warrants	3 Months Ended
Mar. 31, 2026
Notes to Financial Statements
Warrants [Text Block]	Note 14 TotalStone Warrants TotalStone Class A Warrants. In April 2020, 1,175 warrants to purchase Class A common interests in TotalStone were granted to TotalStone management at an exercise price of $0.01 per unit, vesting over three years through March 31, 2023. Of the original grant, 50 warrants were previously forfeited, and the remaining 1,125 outstanding warrants were cancelled on the Restructuring Date ( March 7, 2025) in connection with the corporate restructuring described in Note 2. As of March 31, 2026 and December 31, 2025, no TotalStone warrants remained outstanding. Representative's Warrant. In connection with the March 7, 2025, Public Offering, the Company issued warrants to the underwriters to purchase 62,500 shares of Common Stock at an exercise price of $4.00 per share. The Representative's Warrant became exercisable on September 5, 2025, and expires on September 7, 2026. As of March 31, 2026, no portion had been exercised. February 2026 Warrant (3i, LP). On February 12, 2026, in connection with the Letter Agreement deferring the $606,054 installment payment originally due January 22, 2026 under SSN #2 (see Note 11), the Company issued to 3i, LP a five-year warrant to purchase 405,000 shares of Common Stock at an exercise price of $0.01 per share, expiring February 12, 2031. The Company evaluated the modification under ASC 470-50, concluded the 10% test was not met, and accounted for it as a modification. The warrant was classified as equity under ASC 815-40 and is not subject to recurring remeasurement. The fair value of $203 thousands was estimated using the Black-Scholes option-pricing model with the following inputs: stock price $0.5077 (CAPS closing on 2/12/2026), exercise price $0.01, expected term 5.0 years, risk-free rate 3.67%, dividend yield 0%, and annualized volatility 100.5%. The fair value was recorded as an increase to additional paid-in capital with a corresponding discount on SSN #2, which is being amortized to interest expense over the remaining term to maturity. As of March 31, 2026, no portion of the warrant had been exercised.

Note 14 - TotalStone Warrants

3 Months Ended

Mar. 31, 2026

Note 14 TotalStone Warrants

TotalStone Class A Warrants. In April 2020, 1,175 warrants to purchase Class A common interests in TotalStone were granted to TotalStone management at an exercise price of $0.01 per unit, vesting over three years through March 31, 2023. Of the original grant, 50 warrants were previously forfeited, and the remaining 1,125 outstanding warrants were cancelled on the Restructuring Date ( March 7, 2025) in connection with the corporate restructuring described in Note 2. As of March 31, 2026 and December 31, 2025, no TotalStone warrants remained outstanding.

Representative's Warrant. In connection with the March 7, 2025, Public Offering, the Company issued warrants to the underwriters to purchase 62,500 shares of Common Stock at an exercise price of $4.00 per share. The Representative's Warrant became exercisable on September 5, 2025, and expires on September 7, 2026. As of March 31, 2026, no portion had been exercised.

February 2026 Warrant (3i, LP). On February 12, 2026, in connection with the Letter Agreement deferring the $606,054 installment payment originally due January 22, 2026 under SSN #2 (see Note 11), the Company issued to 3i, LP a five-year warrant to purchase 405,000 shares of Common Stock at an exercise price of $0.01 per share, expiring February 12, 2031. The Company evaluated the modification under ASC 470-50, concluded the 10% test was not met, and accounted for it as a modification. The warrant was classified as equity under ASC 815-40 and is not subject to recurring remeasurement. The fair value of $203 thousands was estimated using the Black-Scholes option-pricing model with the following inputs: stock price $0.5077 (CAPS closing on 2/12/2026), exercise price $0.01, expected term 5.0 years, risk-free rate 3.67%, dividend yield 0%, and annualized volatility 100.5%. The fair value was recorded as an increase to additional paid-in capital with a corresponding discount on SSN #2, which is being amortized to interest expense over the remaining term to maturity. As of March 31, 2026, no portion of the warrant had been exercised.