Quarterly report pursuant to Section 13 or 15(d)

Debt (Schedule of Debt) (Details)

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Debt (Schedule of Debt) (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Mar. 31, 2011
Dec. 29, 2018
Term Loan | Term loan established November, 2014    
Debt Instrument [Line Items]    
Long-term debt   $ 1,250
Stated interest rate (percentage)   6.00%
Debt instrument, term (in years)   6 years
Term Loan | Term loan established June, 2016    
Debt Instrument [Line Items]    
Long-term debt   $ 995
Stated interest rate (percentage)   6.00%
Debt instrument, term (in years)   6 years
Secured Debt | Term Loan Established October, 2017    
Debt Instrument [Line Items]    
Long-term debt   $ 2,752
Stated interest rate (percentage)   6.00%
Debt instrument, term (in years)   6 years
Revolving Credit Facility | Line of Credit    
Debt Instrument [Line Items]    
Long-term debt   $ 5,000
Stated interest rate (percentage)   7.50%
Debt instrument, term (in years) 18 months