XML 29 R47.htm IDEA: XBRL DOCUMENT v2.4.0.8
Credit Facility (Details) (USD $)
 3 Months Ended 6 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Jan. 31, 2014
Jan. 31, 2013
Line of Credit Facility [Line Items]        
Line of credit facility, amendment date     Dec. 06, 2013  
Line of credit facility, expiration date     Oct. 31, 2014  
Date the credit facility may be extended to     Dec. 31, 2016  
Line of credit facility, maximum borrowing capacity $ 100,000,000   $ 100,000,000  
Credit facility sub-limit for commercial letters of credit 15,000,000   15,000,000  
Credit facility sub-limit for standby letters of credit 35,000,000   35,000,000  
Outstanding revolving loans under the credit facility at period end 0   0  
Outstanding standby letters of credit at period end 1,791,000   1,791,000  
Outstanding commercial letters of credit at period end 0   0  
Minimum applicable interest rate margin over LIBOR at which the revolving credit facility may bear interest     1.75%  
Maximum applicable interest rate margin over LIBOR at which the revolving credit facility may bear interest     2.50%  
Basis points (expressed as a %) added to the Federal Funds Effective Rate to determine a base rate     0.50%  
Basis points (expressed as a %) added to the daily floating interest rate to determine a base rate     2.00%  
Minimum applicable interest rate margin over the base rate at which the credit facility may bear interest     0.75%  
Maximum applicable interest rate margin over the base rate at which the credit facility may bear interest     1.50%  
Amount an acquisition target purchase price must exceed in order for the target's historical EBITDA to be included when determining compliance with debt covenants 10,000,000   10,000,000  
Minimum level of total consolidated indebtedness, if maintained, that would not trigger a minimum level of Consolidated Adjusted EBITDA covenant requirement 200,000,000   200,000,000  
Line of Credit Facility, Interest Rate at Period End 2.70%   2.70%  
Interest expense related to credit facility $ 167,000 $ 184,000 $ 353,000 $ 363,000