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Intangible Assets (Tables)
 12 Months Ended
Mar. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]  
Gross carrying amount and related accumulated amortization of definite-lived intangible assets
The following table provides the gross carrying amount and related accumulated amortization of definite-lived intangible assets:

 
March 31, 2013
 
March 31, 2012
 
Gross Carrying
Amount
 
Accumulated
Amortization
 
Gross Carrying
Amount
 
Accumulated
Amortization
Cost of acquiring existing customers
$
22,079,607

 
(17,650,898
)
 
$
21,628,792

 
(16,366,708
)
Value assigned to non-compete agreements
8,289,643

 
(8,093,520
)
 
8,229,643

 
(8,012,237
)
Total
$
30,369,250

 
(25,744,418
)
 
$
29,858,435

 
(24,378,945
)