Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss, Current	$ 19,174	$ 16,672
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.1	$ 0.1
Common Stock, Shares Authorized (in shares)	10,000,000	10,000,000
Common Stock, Shares, Issued (in shares)	4,594,319	4,594,319
Common Stock, Shares, Outstanding (in shares)	4,594,319	4,594,319