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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)
3 Months Ended
Jan. 02, 2016
Mar. 31, 2016
Mar. 31, 2015
Amortization expense of intangible assets   $ 186,000 $ 180,000
Goodwill acquired $ 1,693,000    
Other amortizable intangible assets 92,000    
Customer list      
Intangible assets acquired $ 591,000