Note 7 - Stock Options - Stock Options Outstanding (Details) - $ / shares			9 Months Ended	12 Months Ended
	Jan. 31, 2022	Jan. 07, 2022	Sep. 30, 2022	Dec. 31, 2021
Outstanding (in shares)			338,500
Outstanding Options, weighted average exercise price (in dollars per share)			$ 5.80
Outstanding, weighted average remaining contractual term (Year)			8 years 9 months 7 days	6 years 11 months 23 days
Exercised (in shares)	(3,874)	(340,893)	(50,000)
Exercised, weighted average exercise price (in dollars per share)			$ 2.40
Outstanding (in shares)			608,266	338,500
Outstanding Options, weighted average exercise price (in dollars per share)			$ 5.30	$ 5.80
Option at 2.00 [Member]
Outstanding, weighted average remaining contractual term (Year)			9 years 3 months 18 days
Options Granted (in shares)			250,000
Options Granted, weighted average exercise price (in dollars per share)			$ 2.00
Outstanding (in shares)			250,000
Outstanding Options, weighted average exercise price (in dollars per share)			$ 2.00
Options at $2.40 [Member]
Outstanding, weighted average remaining contractual term (Year)			9 years 3 months 18 days
Options Granted (in shares)			90,893
Options Granted, weighted average exercise price (in dollars per share)			$ 2.40
Outstanding (in shares)			90,893
Outstanding Options, weighted average exercise price (in dollars per share)			$ 2.40
Options at 3.62 [Member]
Outstanding, weighted average remaining contractual term (Year)			4 years 4 months 2 days
Options Granted (in shares)			2,762
Options Granted, weighted average exercise price (in dollars per share)			$ 3.62
Outstanding (in shares)			2,762
Outstanding Options, weighted average exercise price (in dollars per share)			$ 3.62
Options at 9.00 [Member]
Outstanding, weighted average remaining contractual term (Year)			8 years 2 months 15 days
Options Granted (in shares)			1,111
Options Granted, weighted average exercise price (in dollars per share)			$ 9.00
Cancelled / Forfeited (in shares)			(25,000)
Cancelled / Forfeited, weighted average exercise price (in dollars per share)			$ 9.00
Outstanding (in shares)			257,861
Outstanding Options, weighted average exercise price (in dollars per share)			$ 9.00
Options at 26.20 [Member]
Outstanding, weighted average remaining contractual term (Year)			5 years 6 months 18 days
Outstanding (in shares)			6,750
Outstanding Options, weighted average exercise price (in dollars per share)			$ 26.20