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Subsequent Events (Details) (USD $)
 6 Months Ended 0 Months Ended 40 Months Ended 0 Months Ended 3 Months Ended 12 Months Ended 0 Months Ended
Sep. 30, 2013
Financing Agreement [Member]
May 24, 2012
Financing Agreement [Member]
Term Loans [Member]
Jan. 17, 2017
Financing Agreement [Member]
Term Loans [Member]
Sep. 30, 2013
Financing Agreement [Member]
Revolving Facility [Member]
Oct. 09, 2013
Subsequent Event [Member]
Jan. 18, 2014
Subsequent Event [Member]
Financing Agreement [Member]
Jan. 18, 2015
Subsequent Event [Member]
Financing Agreement [Member]
Nov. 06, 2013
Subsequent Event [Member]
Financing Agreement [Member]
Nov. 06, 2013
Subsequent Event [Member]
Financing Agreement [Member]
Term Loans [Member]
Nov. 06, 2013
Subsequent Event [Member]
Financing Agreement [Member]
Revolving Facility [Member]
Option Purchase Agreement [Abstract]                    
Number of shares originally purchasable under stock options repurchased (in shares)         100,000          
Net purchase price of employee stock options to be repurchased         $ 626,500          
Closing price per share on measurement date (in dollars per share)         $ 12.66          
Financing Agreement [Abstract]                    
Increase (decrease) in maximum borrowing capacity                 (10,000,000) 10,000,000
Maximum borrowing capacity   85,000,000   20,000,000         95,000,000 30,000,000
Debt instrument, maturity date Jan. 17, 2017               Nov. 06, 2018 Nov. 06, 2018
Maximum amount of equity interests that may be repurchased               10,000,000    
Quarterly principal payments     2,100,000           2,100,000  
Reference interest rate under option 1   LIBOR             LIBOR LIBOR
Reference interest rate under option 1, floor (in hundredths)                 1.50%  
Interest rate over LIBOR rate under option 1 (in hundredths)   8.50%             5.25% 2.50%
Interest rate above reference rate under option 2 (in hundredths)   7.50%             4.25% 1.00%
Number of months of trailing Consolidated EBITDA used to calculate borrowing base restrictions                   12 months
Fees payable for unused portion of revolving line of credit, per annum (in hundredths)                   0.50%
Prepayment penalty (in hundredths)           3.00% 2.00%      
Maximum amount that can be prepaid within specified number of days subsequent to amendment effective date without prepayment penalty               $ 10,000,000    
Number of days that prepayment penalty is waived for specified prepayment amount               120 days