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Debt (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Dec. 28, 2016
Debt (Textual)      
Outstanding balances under revolver $ 2,427 $ 2,120  
Revolver [Member]      
Debt (Textual)      
LIBOR interest rate, description Plus a margin of 4.00%.    
Term Loan [Member]      
Debt (Textual)      
LIBOR interest rate, description Plus a margin of 4.50%.    
Sterling National Bank [Member]      
Debt (Textual)      
Credit facility aggregate amount     $ 8,500
Subordinated indebtedness, description (i) a fixed charge coverage ratio of not less than 1.1 to 1.0 for any fiscal month (determined as of the last day of each fiscal month on a rolling twelve-month basis, as calculated for the Company and its consolidated subsidiaries) and (ii) a leverage ratio of not more than 2.0 to 1.0 for any fiscal month.    
Sterling facility, maturity date Dec. 31, 2019    
Sterling National Bank [Member] | Revolver [Member]      
Debt (Textual)      
Credit facility aggregate amount     5,000
Interest on revolver - margin 4.00%    
Outstanding balances under revolver $ 2,427    
Variable rate basis, description Interest on the Revolver is variable, based upon the 30-day LIBOR rate (1.23% at September 30, 2017).    
Sterling National Bank [Member] | Term Loan [Member]      
Debt (Textual)      
Credit facility aggregate amount     $ 3,500
Term loan amortize rate $ 19    
Outstanding balances under term loan $ 3,344    
Variable rate basis, description Interest on the Term Loan also is variable, based upon the 30-day LIBOR rate (1.23% at September 30, 2017).