Valuation and Qualifying Accounts (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Balance at Beginning of Period	$ 535,243	$ 538,914	$ 538,914	$ 539,373
Additions Charged to Costs and Expenses	0	0	0	0
Deductions	(855)	(3,671)	0	(459)
Changes Add (Deduct)	0	0	0	0
Balance at End of Period	$ 534,388	$ 535,243	$ 538,914	$ 538,914