Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Oct. 01, 2023	Dec. 31, 2022
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)	975,150	975,150
Preferred Stock, Shares Issued (in shares)	0	0
Treasury Stock, Common, Shares (in shares)	10,835	19
Series A Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)	24,850	24,850
Preferred Stock, Shares Issued (in shares)	0	0
Nonvoting Common Stock [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	10,000,000	10,000,000
Common Stock, Shares, Issued (in shares)	0	0
Common Stock [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	30,000,000	30,000,000
Common Stock, Shares, Issued (in shares)	22,465,485	22,175,664
Common Stock, Shares, Outstanding, Ending Balance (in shares)	22,454,649	22,175,645