Note 17 - Subsequent Events	12 Months Ended
Dec. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	(17) SUBSEQUENT EVENTS: On January 3, 2023, the Company sold to an institutional investor in a registered direct offering 930,000 shares of common stock at a purchase price per share of $1.61, and prefunded warrants to purchase up to an aggregate of 1,678,696 shares of common stock at a purchase price of $1.6099 per pre-funded warrant. The pre-funded warrants have an exercise price of $0.0001 per share and remain exercisable until exercised in full. The net proceeds from the registered direct offering were approximately $3.7 million after deducting fees due to the placement agent in the offering and our estimated expenses. In a concurrent private placement, the Company also issued to the investor Series A-1 warrants to purchase up to 2,608,696 shares of common stock at an exercise price of $1.36 per share, exercisable for a period of five years from the date of issuance, and Series A-2 warrants to purchase up to 2,608,696 shares of common stock at an exercise price of $1.36 per share, exercisable for a period of three years from the date of issuance. H.C. Wainwright & Co., LLC acted as placement agent to the Company in connection with the registered direct offering and concurrent private placement and was paid a cash fee equal to 7.5% of the gross proceeds of the offering, a management fee equal to 1.0% of the gross proceeds of the offering, and was reimbursed by the Company for its non-accountable expenses in the amount of $35,000, for fees and expenses of its legal counsel, for other out-of-pocket expenses in the amount of $50,000, and for its clearing expenses in the amount of $15,950. The Company also issued to designees of the placement agent five-year warrants to purchase an aggregate of 156,522 shares of common stock at an exercise price of $2.0125 per share. On January 12, 2023, the Company entered into a three-year lease extension for approximately 1,500 square feet of office and distribution warehouse space located in Gainesville, Florida for $1,700 per month, with a three-year renewal option. On January 25, 2023, the investor exercised a portion of its pre-funded warrants and acquired 400,696 shares of common stock for an aggregate exercise price of $40, and on February 27, 2023, the investor exercised an additional portion of its pre-funded warrants and acquired 741,000 shares of common stock for an aggregate exercise price of $74. On March 3, 2023, following the approval of the Company’s stockholders at a special meeting, the Company’s Articles of Incorporation were amended to increase the number of authorized shares of common stock from 20,000,000 to 50,000,000. On March 7, 2023, the Company awarded options to purchase (i) an aggregate of 329,131 shares of common stock to its officers and employees, with an exercise price of $1.28, vesting over a four-year period in equal monthly installments, and (ii) 3,350 shares of common stock to each of its five non-employee directors, with an exercise price of $1.28, vesting over a one-year period in equal monthly installments.

Note 17 - Subsequent Events

12 Months Ended

Dec. 31, 2022

(17) SUBSEQUENT EVENTS:

On January 3, 2023, the Company sold to an institutional investor in a registered direct offering 930,000 shares of common stock at a purchase price per share of $1.61, and prefunded warrants to purchase up to an aggregate of 1,678,696 shares of common stock at a purchase price of $1.6099 per pre-funded warrant. The pre-funded warrants have an exercise price of $0.0001 per share and remain exercisable until exercised in full. The net proceeds from the registered direct offering were approximately $3.7 million after deducting fees due to the placement agent in the offering and our estimated expenses.

In a concurrent private placement, the Company also issued to the investor Series A-1 warrants to purchase up to 2,608,696 shares of common stock at an exercise price of $1.36 per share, exercisable for a period of five years from the date of issuance, and Series A-2 warrants to purchase up to 2,608,696 shares of common stock at an exercise price of $1.36 per share, exercisable for a period of three years from the date of issuance.

H.C. Wainwright & Co., LLC acted as placement agent to the Company in connection with the registered direct offering and concurrent private placement and was paid a cash fee equal to 7.5% of the gross proceeds of the offering, a management fee equal to 1.0% of the gross proceeds of the offering, and was reimbursed by the Company for its non-accountable expenses in the amount of $35,000, for fees and expenses of its legal counsel, for other out-of-pocket expenses in the amount of $50,000, and for its clearing expenses in the amount of $15,950. The Company also issued to designees of the placement agent five-year warrants to purchase an aggregate of 156,522 shares of common stock at an exercise price of $2.0125 per share.

On January 12, 2023, the Company entered into a three-year lease extension for approximately 1,500 square feet of office and distribution warehouse space located in Gainesville, Florida for $1,700 per month, with a three-year renewal option.

On January 25, 2023, the investor exercised a portion of its pre-funded warrants and acquired 400,696 shares of common stock for an aggregate exercise price of $40, and on February 27, 2023, the investor exercised an additional portion of its pre-funded warrants and acquired 741,000 shares of common stock for an aggregate exercise price of $74.

On March 3, 2023, following the approval of the Company’s stockholders at a special meeting, the Company’s Articles of Incorporation were amended to increase the number of authorized shares of common stock from 20,000,000 to 50,000,000.

On March 7, 2023, the Company awarded options to purchase (i) an aggregate of 329,131 shares of common stock to its officers and employees, with an exercise price of $1.28, vesting over a four-year period in equal monthly installments, and (ii) 3,350 shares of common stock to each of its five non-employee directors, with an exercise price of $1.28, vesting over a one-year period in equal monthly installments.