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Other Receivables Other Receivables
 12 Months Ended
Dec. 31, 2017
Receivables [Abstract]  
Other Receivables
Other receivables
Other receivables were comprised of the following: 
 
December 31,
 
2017
 
2016
Supplier rebates and non-trade receivables
$
268,949

 
$
183,498

Medicare bad debt claims
103,970

 
104,658

 
$
372,919

 
$
288,156