NOTE 17. REVENUES BY PRODUCT AND SERVICE CATEGORY AND GEOGRAPHIC REGION AND SIGNIFICANT CONCENTRATIONS

Revenue Information

The following is a summary of our revenues by product and service category (in thousands):

	Three Months Ended December 31,				Nine Months Ended December 31,
Revenues by Product and Service Category	2014		2013		2014		2013
Instruments(1)	$	19,242	$	8,161	$	36,941	$	30,373
Consumables(2)		34,232		28,096		106,656		87,394
Other products and services(3)		5,990		4,515		17,213		11,950
Product and service revenues, net		59,464		40,772		160,810		129,717
Development and licensing revenue		38		38		112		113
Total revenues	$	59,502	$	40,810	$	160,922	$	129,830

(1)	Instruments include chemistry analyzers, hematology instruments, VSpro specialty analyzers and i-STAT analyzers.

(2)	Consumables include reagent discs, hematology reagent kits, VSpro specialty cartridges, i-STAT cartridges and rapid tests.

(3)	Other products and services include veterinary reference laboratory diagnostic and consulting services.

The following is a summary of our revenues by geographic region based on customer location (in thousands):

	Three Months Ended December 31,				Nine Months Ended December 31,
Revenues by Geographic Region	2014		2013		2014		2013
North America	$	49,027	$	31,801	$	131,878	$	103,773
Europe		8,154		7,173		22,682		20,171
Asia Pacific and rest of the world		2,321		1,836		6,362		5,886
Total revenues	$	59,502	$	40,810	$	160,922	$	129,830

Significant Concentrations

During the three months ended December 31, 2014, two distributors in the United States, MWI Veterinary Supply and Abbott Point of Care, Inc., accounted for 17% and 13%, respectively, of our total worldwide revenues. During the nine months ended December 31, 2014, two distributors in the United States, MWI Veterinary Supply and Abbott Point of Care, Inc., accounted for 17% and 10%, respectively, of our total worldwide revenues.

During the three months ended December 31, 2013, one distributor in the United States, Abbott Point of Care, Inc, accounted for 12% of our total worldwide revenues. During the nine months ended December 31, 2013, one distributor in the United States, MWI Veterinary Supply, accounted for 18% of our total worldwide revenues.

Concentration of credit risk with respect to accounts receivable is primarily limited to certain distributors to whom we make significant sales. One distributor in the United States accounted for 24% and 25% of our total receivable balance at December 31, 2014 and March 31, 2014, respectively.