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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2018
Summary of Significant Accounting Policies [Abstract]  
Schedule of financial assets measured at fair value on nonrecurring basis
  As of September 30, 2018 
  Level 1  Level 2  Level 3  Total 
Assets:            
Cash and money market accounts $2,393,263  $-  $-  $2,393,263 
Interest rate swaps $-  $98,390  $-  $98,390 

  

  As of December 31, 2017 
  Level 1  Level 2  Level 3  Total 
Assets:            
Cash and money market accounts $3,798,811  $-  $-  $3,798,811 
Liabilities:                
Interest rate swaps $-  $(996) $-  $(996)
Schedule of sales to significant customers

 

  

During the Three-Month

Periods Ended 
September 30,

  

During the Nine-Month

Periods Ended 
September 30,

 
  2018  2017  2018  2017 
Animal Health International, Inc.  50%  44%  42%  42%
MWI Animal Health  23%  22%  22%  23%
ANIMART LLC  *   10%  10%  * 

  

*Amount is less than 10%.

Schedule of accounts receivable due from significant customers

  

As of

September 30,
2018

  

As of

December 31,
2017

 
Animal Health International, Inc.  58%  40%
MWI Animal Health  25%  29%

 

Schedule of weighted average and diluted number of shares outstanding

  During the Three-Month  During the Nine-Month 
  Periods Ended
September 30,
  Periods Ended 
September 30,
 
  2018  2017  2018  2017 
Weighted average number of shares outstanding  5,483,880   4,992,803   5,481,095   4,896,782 
Effect of dilutive stock options  -   -   -   102,463 
Diluted number of shares outstanding  5,483,880   4,992,803   5,481,095   4,999,245 
Outstanding stock options not included in the calculation because the effect would be anti-dilutive  489,000   367,000   489,000   63,000