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Goodwill (Tables)
 12 Months Ended
Mar. 31, 2019
Goodwill [Abstract]  
Changes in the carrying amount of goodwill
The following summarizes the changes in the carrying amount of goodwill for the years ended March 31, 2019 and 2018:
 
2019
 
2018
Balance at beginning of year:
 
 
 
Goodwill
$
7,114,094

 
6,146,851

Accumulated goodwill impairment losses
(79,631
)
 
(79,631
)
Goodwill, net
$
7,034,463

 
6,067,220

 
 
 
 
Goodwill acquired during the year
$
—

 
967,243

Impairment losses
—

 
—

 
 
 
 
Balance at end of year:
 

 
 

Goodwill
$
7,114,094

 
7,114,094

Accumulated goodwill impairment losses
(79,631
)
 
(79,631
)
Goodwill, net
$
7,034,463

 
7,034,463