v3.8.0.1
Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 24, 2016
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]      
Indefinite lived intangibles $ 242   $ 242
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (17,874)   (17,081)
Net Carrying Value 894    
Total Gross Carrying Value 19,010   18,789
Total Accumulated Amortization (17,874)   (17,081)
Total Net Carrying Value 1,136   1,708
Trademarks and trade names      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value 4,461   4,394
Accumulated Amortization (4,309)   (4,200)
Net Carrying Value 152   194
Total Accumulated Amortization $ (4,309)   (4,200)
Weighted-Average Remaining Life (Years) 1 year 9 months 2 years 6 months  
Proprietary software      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 5,303   5,102
Accumulated Amortization (5,118)   (4,485)
Net Carrying Value 185   617
Total Accumulated Amortization $ (5,118)   (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     127
Accumulated Amortization     (120)
Net Carrying Value     7
Total Accumulated Amortization     (120)
Weighted-Average Remaining Life (Years)   7 months 6 days  
Leasehold interests      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 170   170
Accumulated Amortization (131)   (111)
Net Carrying Value 39   59
Total Accumulated Amortization $ (131)   (111)
Weighted-Average Remaining Life (Years) 1 year 7 months 2 years 4 months  
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 8,834   8,754
Accumulated Amortization (8,316)   (8,165)
Net Carrying Value 518   589
Total Accumulated Amortization $ (8,316)   $ (8,165)
Weighted-Average Remaining Life (Years) 5 years 5 months 6 years 1 month 6 days