Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)	1,000,000	1,000,000
Preferred Stock, Shares Issued (in shares)	0	0
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	20,000,000	20,000,000
Common Stock, Shares, Issued (in shares)	7,669,339	7,611,244
Common Stock, Shares, Outstanding (in shares)	7,639,780	7,581,685
Treasury Stock, Common, Shares (in shares)	29,559	29,559