Earnings Per Share (Tables)

12 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Summary of basic and diluted average common shares outstanding

The following is a reconciliation of the numerators and denominators of the basic and diluted EPS calculations:

	For the year ended March 31, 2013
	Income (Numerator)		Shares (Denominator)	Per Share Amount
Basic EPS
Income available to common shareholders	$	104,089,748	12,940,007	$	8.04
Effect of Dilutive Securities Options and restricted stock	—		274,264
Convertible notes payable	—		—
Diluted EPS
Income available to common shareholders plus assumed exercises of stock options	$	104,089,748	13,214,271	$	7.88

	For the year ended March 31, 2012
	Income(Numerator)		Shares(Denominator)	Per Share Amount
Basic EPS
Income available to common shareholders	$	100,694,443	14,906,662	$	6.75
Effect of Dilutive Securities Options and restricted stock	—		373,489
Convertible notes payable	—		8,960
Diluted EPS
Income available to common shareholders plus assumed exercises of stock options	$	100,694,443	15,289,111	$	6.59

	For the year ended March 31, 2011
	Income(Numerator)		Shares(Denominator)	Per Share Amount
Basic EPS
Income available to common shareholders	$	91,249,180	15,833,983	$	5.76
Effect of Dilutive Securities Options and restricted stock	—		376,250
Convertible notes payable	—		—
Diluted EPS
Income available to common shareholders plus assumed exercises of stock options	$	91,249,180	16,210,233	$	5.63