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10. REVENUES
 3 Months Ended
Mar. 31, 2020
Revenue from Contract with Customer [Abstract]  
REVENUES

10. REVENUES

 

For each of the identified periods, revenues can be categorized into the following:

 

   For the Three Months Ended
   March 31,
   2020  2019
Product sales  $1,302,363   $1,187,465 
Maintenance fees   3,679    2,130 
Professional services   14,525    – 
Discounts and allowances   (3,515)   – 
Total revenues  $1,317,052   $1,189,595 

 

At March 31, 2020 and December 31, 2019, deferred revenue was $99,056 and $93,609, respectively. The March 31, 2020 balance includes $35,520 for product deposits on product scheduled to be delivered within the next six months and $63,536 for deferred maintenance fees pertaining to services to be provided through the third quarter of 2024.

 

At December 31, 2018, the Company accrued expected contract losses of $71,744 on an order for a customer that shipped in 2019. As the units were delivered, the loss accrual was proportionally reduced. In the three months ended March 31, 2019, $37,982 was released from the accrual to reduce cost of revenues.