Borrowings (Senior Secured Revolving Credit Facility) (Details) (USD $)
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0 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | ||||
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May 10, 2013
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Sep. 30, 2013
Regions Bank [Member]
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Sep. 30, 2013
Revolving Credit Facility [Member]
Regions Bank [Member]
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Dec. 20, 2013
Subsequent Event [Member]
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Dec. 20, 2013
Subsequent Event [Member]
Revolving Credit Facility [Member]
Regions Bank [Member]
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Oct. 31, 2013
Subsequent Event [Member]
Revolving Credit Facility [Member]
Regions Bank [Member]
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Sep. 30, 2013
LIBOR [Member]
Minimum [Member]
Regions Bank [Member]
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Sep. 30, 2013
LIBOR [Member]
Maximum [Member]
Regions Bank [Member]
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Line of Credit Facility [Line Items] | ||||||||
Maximum borrowing capacity | $ 200,000,000 | |||||||
Credit Facility borrowing base | 75,000,000 | 83,000,000 | ||||||
Percentage of outstanding principal, repayment is contingent upon | 50.00% | |||||||
Contingent borrowing capacity reduction, percentage | 25.00% | |||||||
Minimum outstanding balance where reduction in borrowing base may occur | 48,000,000 | |||||||
Amount allowed for payment of debt and dividends | 5,500,000 | |||||||
Balance outstanding on the Credit Facility | $ 17,000,000 | |||||||
Debt instrument, interest rate, effective (as a percent) | 2.70% | |||||||
Basis spread on LIBOR (as a percent) | 2.50% | 3.00% | ||||||
Unused capacity, commitment fee (as a percent) | 0.50% |