Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	50,000,000	50,000,000
Common Stock, Shares, Outstanding (in shares)	11,875,556	12,226,306
Nonrelated Party [Member]
Accounts Receivable, Allowance for Credit Loss, Current	$ 35,000	$ 45,000