Revenue

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

REVENUE

14. REVENUE

We primarily offer the First Defense^® product line to dairy and beef producers to prevent scours in newborn calves. Generally, our products are promoted to veterinarians as well as dairy and beef producers by our sales team and then sold through distributors. Our primary market is North America. We do sell into select international regions and may expand this international reach in the future. There were no material changes between the allocation and timing of revenue recognition during the six-month period ended June 30, 2020 or the year ended December 31, 2019. We do not have any contract assets for which we have satisfied the performance obligations but do not yet have the right to bill for or contract liabilities such as customer advances. All trade receivables on our balance sheets are from contracts with customers. We incur no material costs to obtain contracts.

The following table presents our product sales disaggregated by geographic area:

	During the Three-Month Periods Ended June 30,				During the Six-Month Periods Ended June 30,
	2020		2019		2020		2019
United States	$	2,599,731	$	2,527,478	$	6,957,413	$	6,305,225
Other(1)		366,222		182,442		918,928		815,256
Total product sales	$	2,965,953	$	2,709,920	$	7,876,341	$	7,120,481

⁽¹⁾ Sales outside of the United States included $133,601 of non-animal health sales during the first quarter of 2019, which product has since been divested.

The following table presents our product sales disaggregated by major product category:

	During the Three-Month Periods Ended June 30,				During the Six-Month Periods Ended June 30,
	2020		2019		2020		2019
First Defense®  product line	$	2,930,581	$	2,672,531	$	7,749,773	$	6,813,448
Other animal health		35,372		37,389		126,568		173,432
Other		—		—		—		133,601
Total product sales	$	2,965,953	$	2,709,920	$	7,876,341	$	7,120,481