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Earnings Per Share - Factors Used in Computation of Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Basic
Net income to common stockholders	$ 9,495us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 236us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 14,928us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	$ 521us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Weighted average common shares outstanding	9,872,923us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	8,800,670us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	9,850,640us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	8,078,476us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Basic earnings per common share	$ 0.96us-gaap_EarningsPerShareBasic	$ 0.03us-gaap_EarningsPerShareBasic	$ 1.52us-gaap_EarningsPerShareBasic	$ 0.06us-gaap_EarningsPerShareBasic
Diluted
Net income to common stockholders	9,495us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	236us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	14,928us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	521us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Dilutive effect of preferred stock	197us-gaap_PreferredStockDividendsIncomeStatementImpact		583us-gaap_PreferredStockDividendsIncomeStatementImpact
Net income to common stockholders - diluted	$ 9,692us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	$ 236us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	$ 15,511us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	$ 521us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Weighted average common shares outstanding	9,872,923us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	8,800,670us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	9,850,640us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	8,078,476us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Average shares and dilutive potential common shares	10,602,155us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	8,807,443us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	10,585,931us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	8,081,804us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Dilutive earnings per common share	$ 0.91us-gaap_EarningsPerShareDiluted	$ 0.03us-gaap_EarningsPerShareDiluted	$ 1.47us-gaap_EarningsPerShareDiluted	$ 0.06us-gaap_EarningsPerShareDiluted
Preferred Stock - Series A
Diluted
Dilutive effects of assumed conversion of shares	315,773us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember		315,773us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Series B Preferred Stock
Diluted
Dilutive effects of assumed conversion of shares	360,578us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember		360,578us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember
RSUs
Diluted
Dilutive effects of shares		6,773us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_RestrictedStockUnitsRSUMember	6,059us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_RestrictedStockUnitsRSUMember	3,328us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_RestrictedStockUnitsRSUMember
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Warrants
Diluted
Dilutive effects of shares	52,881us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember		52,881us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember
Antidilutive shares	0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember	259,067us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember	0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember	259,067us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember
Performance Shares | Preferred Stock - Series A
Diluted
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Performance Shares | Series B Preferred Stock
Diluted
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