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				Nine Months Ended
	December 31,				December 31,
Revenues by Product and Service Category	2011		2010		2011		2010
Instruments(1)	$	9,079	$	9,289	$	25,364	$	24,256
Consumables(2)		26,808		24,509		83,019		75,136
Other products and services(3)		1,925		1,753		5,372		5,558
Product and service revenues, net		37,812		35,551		113,755		104,950
Development and licensing revenue		38		355		123		1,186
Total revenues	$	37,850	$	35,906	$	113,878	$	106,136

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

(2)	Consumables include reagent discs, hematology reagent kits, VSpro coagulation and 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 revenues by geographic region based on customer location (in thousands):

	Three Months Ended				Nine Months Ended
	December 31,				December 31,
Revenues by Geographic Region	2011		2010		2011		2010
North America	$	31,847	$	30,068	$	93,540	$	87,385
Europe		4,516		4,508		16,326		14,838
Asia Pacific and rest of the world		1,487		1,330		4,012		3,913
Total revenues	$	37,850	$	35,906	$	113,878	$	106,136

Significant Concentrations

During the three months ended December 31, 2011, one distributor in the United States, Animal Health International, accounted for 15% of our total worldwide revenues. During the nine months ended December 31, 2011, one distributor in the United States, Animal Health International, accounted for 12% of our total worldwide revenues. Animal Health International was formed in 2011 from two animal health companies, which included Walco International, Inc., d/b/a DVM Resources. During the three and nine months ended December 31, 2010, there were no distributors or direct customers that accounted for 10% or more of our total worldwide revenues.

At December 31, 2011, one distributor in the United States accounted for 19% of our total receivables balance. At December 31, 2010, one distributor in the United States accounted for 14% of our total receivables balance.