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Income Taxes (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Current tax provision [Abstract]    
Federal $ 0us-gaap_CurrentFederalTaxExpenseBenefit $ 0us-gaap_CurrentFederalTaxExpenseBenefit
State 800us-gaap_CurrentStateAndLocalTaxExpenseBenefit 800us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign 0us-gaap_CurrentForeignTaxExpenseBenefit 7,100us-gaap_CurrentForeignTaxExpenseBenefit
Current tax provision 800us-gaap_CurrentIncomeTaxExpenseBenefit 7,900us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred tax (benefit)/provision [Abstract]    
Federal (5,854,400)us-gaap_DeferredFederalIncomeTaxExpenseBenefit 4,478,800us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State (98,200)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 1,100us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Decrease in valuation allowance 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance (158,600)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Deferred tax (benefit)/provision (5,952,600)us-gaap_DeferredIncomeTaxExpenseBenefit 4,321,300us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax (benefit)/provision (5,951,800)us-gaap_IncomeTaxExpenseBenefit 4,329,200us-gaap_IncomeTaxExpenseBenefit
Income tax rate reconciliation [Abstract]    
Income tax (benefit)/provision at statutory federal income tax rate (5,863,600)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 4,308,900us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State tax (benefit)/provision, net of federal benefit (97,500)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 19,400us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Prior year withholding tax adjustment 0us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes 174,600us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes
Decrease in valuation allowance 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance (158,600)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Other 9,300us-gaap_IncomeTaxReconciliationOtherAdjustments (15,100)us-gaap_IncomeTaxReconciliationOtherAdjustments
Total income tax (benefit)/provision (5,951,800)us-gaap_IncomeTaxExpenseBenefit 4,329,200us-gaap_IncomeTaxExpenseBenefit
Deferred tax assets [Abstract]    
Maintenance reserves 2,138,900us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals 1,813,900us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
Foreign tax credit carryover 0us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign 1,210,900us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign
Alternative minimum tax credit 10,800us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax 100,800us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
Bad debt allowance and other 961,100us-gaap_DeferredTaxAssetsOther 490,100us-gaap_DeferredTaxAssetsOther
Deferred tax assets 3,110,800us-gaap_DeferredTaxAssetsGross 3,615,700us-gaap_DeferredTaxAssetsGross
Deferred tax liabilities [Abstract]    
Accumulated depreciation on aircraft and aircraft engines (10,450,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (17,540,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Minimum lease payments receivable 0us-gaap_DeferredTaxLiabilitiesLeasingArrangements (649,500)us-gaap_DeferredTaxLiabilitiesLeasingArrangements
Deferred income (1,282,100)us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome 0us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome
Net deferred tax liabilities $ (8,621,300)us-gaap_DeferredTaxAssetsLiabilitiesNet $ (14,573,800)us-gaap_DeferredTaxAssetsLiabilitiesNet