Federal Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Federal Income Taxes (Textual) [Abstract]
Gross federal net operating loss	$ 23,900,000
Start expiry date	2029
End expiry date	2031
General business tax credits	600,000
Expiry date	2028
Expiry end date	2032
Federal alternative minimum tax credits with an indefinite life	600,000
Net operating loss relates to unrealized excess benefits	300,000
Reversed valuation allowance		27,400,000
Reduction of valuation allowance due to tax effects		2,200,000
Valuation allowance - change in estimate	0	(27,361,000)	0
Unrecognized tax benefits	0	0
Accruals of any interest or penalties	$ 0	$ 0