Acquisitions (Summary Of Pro Forma Financial Information) (Details) (USD $)	3 Months Ended								12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Revenue:
Revenue as reported	$ 27,887,446	$ 18,374,977	$ 19,752,045	$ 18,396,756	$ 18,396,254	$ 17,730,445	$ 12,581,986	$ 14,180,435	$ 84,411,224	$ 62,889,120	$ 48,532,317
Pro forma revenue									16,842,595	21,562,379
Pro forma									101,253,819	84,451,499
Net Income:
Net income	9,297,986	5,122,585	5,654,573	4,926,318	5,719,096	5,070,168	1,022,487	2,148,298	25,001,462	13,960,049	7,370,996
Pro forma income									6,437,605	8,107,985
Pro forma									$ 31,439,067	$ 22,068,034