Consolidated Balance Sheets (Parentheticals) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Allowance for credit losses	$ 15,914	$ 14,060
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	125,000,000	125,000,000
Common stock, shares issued (in shares)	52,259,303	50,554,179
Common stock, shares outstanding (in shares)	52,259,303	50,554,179