Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Accounts Receivable, Allowance for Credit Loss, Current	$ 21,628	$ 14,342
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