Operating segments are defined as components of an enterprise about which separate discrete information is available for evaluation by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. The Company currently operates in one business segment as it is managed and operated as one business. A single management team that reports to the chief operating decision maker comprehensively manages the entire business. The Company does not operate any material separate lines of business or separate business entities with respect to its products or product development.

The following geographic data includes revenue generated from the Company’s third-party distributors. The Company’s revenue was generated in the following geographic regions and by product line for the periods indicated (in thousands):

	Revenues by Geography
	Three Months ended June 30,
	2019					2018
	Amount		% of Revenues			Amount		% of Revenues
United States	$	15,890		96	%	$	12,898		97	%
International		682		4	%		354		3	%
Total revenues	$	16,572		100	%	$	13,252		100	%

	U.S. Revenues by Product Category Three Months ended June 30,
	2019					2018
	Amount		% of Revenues			Amount		% of Revenues
	(in thousands, except percentages)
NeuroStar Advanced Therapy System	$	4,628		29	%	$	3,568		28	%
Treatment sessions		10,847		68	%		8,920		69	%
Other		415		3	%		410		3	%
Total U.S. revenues	$	15,890		100	%	$	12,898		100	%

	International Revenues by Product Category Three Months ended June 30,
	2019					2018
	Amount		% of Revenues			Amount		% of Revenues
	(in thousands, except percentages)
NeuroStar Advanced Therapy System	$	465		68	%	$	219		62	%
Treatment sessions		114		17	%		56		16	%
Other		103		15	%		79		22	%
Total International revenues	$	682		100	%	$	354		100	%

	Revenues by Geography
	Six Months ended June 30,
	2019					2018
	Amount		% of Revenues			Amount		% of Revenues
United States	$	28,436		97	%	$	22,870		98	%
International		864		3	%		534		2	%
Total revenues	$	29,300		100	%	$	23,404		100	%

	U.S. Revenues by Product Category Six Months ended June 30,
	2019					2018
	Amount		% of Revenues			Amount		% of Revenues
	(in thousands, except percentages)
NeuroStar Advanced Therapy System	$	7,978		28	%	$	5,941		26	%
Treatment sessions		19,625		69	%		16,160		71	%
Other		833		3	%		769		3	%
Total U.S. revenues	$	28,436		100	%	$	22,870		100	%

	International Revenues by Product Category Six Months ended June 30,
	2019					2018
	Amount		% of Revenues			Amount		% of Revenues
	(in thousands, except percentages)
NeuroStar Advanced Therapy System	$	537		62	%	$	219		41	%
Treatment sessions		133		15	%		81		15	%
Other		194		23	%		234		44	%
Total International revenues	$	864		100	%	$	534		100	%