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Debt (Details) - USD ($)
Nov. 01, 2016
Oct. 06, 2016
Jan. 19, 2010
Sep. 30, 2016
2010 Credit Agreement | SunTrust Bank        
Line of Credit Facility [Line Items]        
Period of term loan and the revolving credit facility     4 years  
Committed revolving credit facility       $ 20,000,000
Revolving credit facility outstanding       $ 0
Interest rate (percent)       2.27%
Revolving Credit facility commitment fee (percent)     0.25%  
2010 Credit Agreement | SunTrust Bank | LIBOR [Member]        
Line of Credit Facility [Line Items]        
Revolving Credit facility and Term Loan interest rate (percent)     1.75%  
Subsequent Event | 2010 Credit Agreement | SunTrust Bank        
Line of Credit Facility [Line Items]        
Payments to acquire businesses $ 4,500,000      
C&CA | Maximum | Scenario, Forecast        
Line of Credit Facility [Line Items]        
Payments to acquire businesses   $ 11,000,000.0