Long-Term Obligations (Details)
$ in Millions
1 Months Ended
Jun. 30, 2013
USD ($)
item
Sep. 30, 2015
Revolving credit facility    
Long-Term Obligations    
Maximum borrowing capacity | $ $ 13.0  
Term borrowings    
Long-Term Obligations    
Interest rate at the end of period (as a percent)   3.75%
Number of equal monthly payments of principal plus interest 42  
Term borrowings | Prime rate    
Long-Term Obligations    
Basis spread on variable rate (as a percent) 0.50%