v3.7.0.1
Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
6 Months Ended
Jul. 01, 2017
Jun. 25, 2016
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]      
Indefinite lived intangibles $ 242   $ 242
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (17,771)   (17,081)
Net Carrying Value 1,025    
Total Gross Carrying Value 19,038   18,789
Total Accumulated Amortization (17,771)   (17,081)
Total Net Carrying Value 1,267   1,708
Trademarks and trade names      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value 4,441   4,394
Accumulated Amortization (4,272)   (4,200)
Net Carrying Value 169   194
Total Accumulated Amortization $ (4,272)   (4,200)
Weighted-Average Remaining Life (Years) 2 years 2 years 6 months  
Proprietary software      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 5,242   5,102
Accumulated Amortization (4,974)   (4,485)
Net Carrying Value 268   617
Total Accumulated Amortization $ (4,974)   (4,485)
Weighted-Average Remaining Life (Years) 1 year 2 months 1 year 4 months  
Non-compete agreements      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 133   127
Accumulated Amortization (132)   (120)
Net Carrying Value 1   7
Total Accumulated Amortization $ (132)   (120)
Weighted-Average Remaining Life (Years) 1 month 7 months 6 days  
Leasehold interests      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 170   170
Accumulated Amortization (124)   (111)
Net Carrying Value 46   59
Total Accumulated Amortization $ (124)   (111)
Weighted-Average Remaining Life (Years) 1 year 11 months 2 years 4 months  
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 8,810   8,754
Accumulated Amortization (8,269)   (8,165)
Net Carrying Value 541   589
Total Accumulated Amortization $ (8,269)   $ (8,165)
Weighted-Average Remaining Life (Years) 5 years 8 months 6 years 1 month 6 days