SEGMENT REPORTING (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Reconciliation of other significant reconciling items from segments to consolidated

Summarized financial information concerning the Company's reportable segments is shown in the following tables (in thousands):

Year Ended December 31, 2018	Core Companion Animal		Other Vaccines and Pharmaceuticals		Total
Total revenue	$	108,924	$	18,522	$	127,446
Operating income	2,040		1,754		3,794
Income before income taxes	2,053		1,754		3,807
Investments in unconsolidated affiliates	8,018		—		8,018
Total assets	133,586		22,866		156,452
Net assets	96,129		26,280		122,409
Capital expenditures	180		1,178		1,358
Depreciation and amortization	3,369		1,226		4,595

Year Ended December 31, 2017	Core Companion Animal		Other Vaccines and Pharmaceuticals		Total
Total revenue	$	105,191	$	24,150	$	129,341
Operating income	12,656		5,563		18,219
Income before income taxes	12,828		5,541		18,369
Investments in unconsolidated affiliates	—		—		—
Total assets	111,625		23,819		135,444
Net assets	75,984		24,456		100,440
Capital expenditures	209		3,260		3,469
Depreciation and amortization	3,736		1,018		4,754

Year Ended December 31, 2016	Core Companion Animal		Other Vaccines and Pharmaceuticals		Total
Total revenue	$	107,398	$	22,685	$	130,083
Operating income	13,015		3,518		16,533
Income before income taxes	12,938		3,566		16,504
Investments in unconsolidated affiliates	—		—		—
Total assets	110,995		19,849		130,844
Net assets	68,072		18,903		86,975
Capital expenditures	1,135		2,282		3,417
Depreciation and amortization	3,800		845		4,645

Schedule of revenue from external customers and long-lived assets, by geographical areas

Total revenue by principal geographic area was as follows (in thousands):

	For the Years Ended December 31,
	2018		2017		2016
U.S.	$	115,543	$	116,823	$	120,082
Canada	2,992		2,924		2,378
Europe	5,995		4,780		4,781
Other International	2,916		4,814		2,842
Total	$	127,446	$	129,341	$	130,083

Total assets by principal geographic areas were as follows (in thousands):

	As of December 31,
	2018		2017		2016
U.S.	$	152,633	$	132,070	$	127,827
Europe	3,819		3,374		3,017
Total	$	156,452	$	135,444	$	130,844