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Note 15 - Segment Information - Financial Information for the Company's Reportable Segments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Net sales to external customers $ 364,204 $ 377,694 $ 392,354
Net income before income taxes 5,309 17,898 16,024
Capital expenditures, net 28,118 24,388 10,890
Depreciation and amortization 16,171 16,419 18,128
Total assets 199,595 213,334  
Retail [Member]      
Net sales to external customers 357,593 372,715 387,725
Net income before income taxes 2,760 16,053 15,791
Capital expenditures, net 28,083 24,307 10,851
Depreciation and amortization 16,086 16,284 17,981
Total assets 190,236 206,878  
Commercial [Member]      
Net sales to external customers 4,312 2,783 2,098
Net income before income taxes 1,813 977 687
Capital expenditures, net 7
Depreciation and amortization 2 1
Total assets 6,143 4,760  
International Franchising [Member]      
Net sales to external customers 2,299 2,196 2,531
Net income before income taxes 736 868 (454)
Capital expenditures, net 35 74 39
Depreciation and amortization 83 134 $ 147
Total assets $ 3,216 $ 1,696