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Other Expenses, Net (Tables)
9 Months Ended
Sep. 30, 2019
Other Income and Expenses [Abstract]  
Schedule of other expenses, net
   During the Three-Month
Periods Ended September 30,
   During the Nine-Month
Periods Ended September 30,
 
   2019   2018   2019   2018 
Interest expense  $106,999   $109,651   $333,030   $311,934 
Interest income   (41,719)   (3,237)   (91,133)   (10,270)
Other expenses, net  $65,280   $106,414   $241,897   $301,664