Operating Segments (Tables)

3 Months Ended

Mar. 31, 2019

The table below presents certain financial information of our operating segments for the three months ended March 31, 2019 and 2018 (in thousands):

Segment Reporting for the Quarter Ended March 31, 2019

	Treatment			Services			Medical			Segments Total			Corporate⁽¹⁾			Consolidated Total
Revenue from external customers	$	9,905		$	1,803			—		$	11,708		$	—		$	11,708
Intercompany revenues		2			21			—			23			—			—
(Negative) gross profit		2,957			(456	)		—			2,501			—			2,501
Research and development		147			—			74			221			6			227
Interest income		—			—			—			—			81			81
Interest expense		(17	)		(9	)		—			(26	)		(61	)		(87	)
Interest expense-financing fees		—			—			—			—			(10	)		(10	)
Depreciation and amortization		237			78			—			315			8			323
Segment income (loss) before income taxes		1,875			(1,012	)		(74	)		789			(1,300	)		(511	)
Income tax expense		(39	)		—			—			(39	)		—			(39	)
Segment income (loss)		1,836			(1,012	)		(74	)		750			(1,300	)		(550	)
Expenditures for segment assets		222			2			—			224			—			224

Segment Reporting for the Quarter Ended March 31, 2018

	Treatment			Services			Medical			Segments Total			Corporate⁽¹⁾			Consolidated Total
Revenue from external customers	$	8,959		$	3,699			—		$	12,658		$	—		$	12,658
Intercompany revenues		213			14			—			227			—			—
Gross profit		2,780			541			—			3,321			—			3,321
Research and development		114			—			100			214			18			232
Interest income		—			—			—			—			49			49
Interest expense		—			(1	)		—			(1	)		(52	)		(53	)
Interest expense-financing fees		—			—			—			—			(9	)		(9	)
Depreciation and amortization		240			123			—			363			9			372
Segment income (loss) before income taxes		1,744			(86	)		(100	)		1,558			(1,254	)		304
Income tax expense		(51	)		—			—			(51	)		—			(51	)
Segment income (loss)		1,693			(86	)		(100	)		1,507			(1,254	)		253
Expenditures for segment assets		220			25			—			245			3			248

⁽¹⁾Amounts reflect the activity for corporate headquarters not included in the segment information.