Federal and State Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Summary of Tax Credit Carryforwards
Federal income tax credit carryforwards expiration date	Dec. 31, 2033
Income Tax Uncertainties
Unrecognized income tax benefit	$ 0	$ 0
Accrued liabilities for the payment of interest or penalties	0	0
Valuation Allowance
Deferred tax valuation allowance	0	0
Federal and State Income Taxes
Base year reserve for bad debts	$ 3,600,000