Marketable Securities (Narrative) (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013
Schedule of Investments [Line Items]
Gross unrealized losses	$ 617,077	$ 13,342
Marketable Securities, Continuous Unrealized Loss Position, 12 Months or Greater, Fair Market Value	441,804
Marketable Securities, Continuous Unrealized Loss Position, 12 Months or Greater, Gross Unrealized Losses	(10,896)
Municipal Bonds [Member]
Schedule of Investments [Line Items]
Gross unrealized losses	37,246	9,155
Marketable Securities, Continuous Unrealized Loss Position, 12 Months or Greater, Fair Market Value	441,804
Marketable Securities, Continuous Unrealized Loss Position, 12 Months or Greater, Gross Unrealized Losses	$ (10,896)
Loss percentage based on adjust cost of available for sale security	(2.40%)