Consolidated Balance Sheets (Parenthetical) - USD ($)	Jan. 02, 2016	Jan. 03, 2015
Current Assets
Accounts receivable, allowances	$ 450,000	$ 414,000
Shareholders' Equity
Voting Preferred Stock, no par value (in dollars per share)	$ 0	$ 0
Voting Preferred Stock, shares authorized (in shares)	1,000,000	1,000,000
Nonvoting Preferred Stock, no par value (in dollars per share)	$ 0	$ 0
Nonvoting Preferred Stock, shares authorized (in shares)	1,000,000	1,000,000
Common Stock, no par value (in dollars per share)	$ 0	$ 0
Common Stock, shares authorized (in shares)	50,000,000	50,000,000
Common Stock, shares issued (in shares)	8,942,461	8,938,742
Treasury Stock, shares (in shares)	2,694,729	2,694,729