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Valuation and Qualifying Accounts and Reserves (Details) - USD ($)
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Allowance for Doubtful Accounts [Member]    
Balance at Beginning of Period $ 1,011,000 $ 978,000
Charged to Costs and Expenses 629,000 905,000
Deduction (208,000) (872,000)
Balance at End of Period 1,432,000 1,011,000
Legal Reserve [Member]    
Balance at Beginning of Period 0 188,000
Charged to Costs and Expenses 214,000 100,000
Deduction 0 (288,000)
Balance at End of Period $ 214,000 $ 0