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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
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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 |  |

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- Definition The maximum amount of equity interests for which the company has a right to repurchase, subject to certain conditions. + References No definition available. + Details
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- Definition The amount of the increase, or decrease, in the maximum borrowing capacity of a debt instrument pursuant to an amendment to the debt agreement. + References No definition available. + Details
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