Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current	$ 3,987	$ 3,760
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001	$ 0.001
Common Stock, Shares Authorized (in shares)	20,000,000	20,000,000
Common Stock, Shares, Issued (in shares)	7,204,506	7,174,506
Common Stock, Shares, Outstanding (in shares)	7,204,506	7,174,506