REVENUES BY PRODUCT AND SERVICE CATEGORY AND GEOGRAPHIC REGION AND SIGNIFICANT CONCENTRATIONS, Revenue by Product and Services (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012
Revenue from External Customer [Line Items]
Product and service revenues, net	$ 40,772		$ 49,764		$ 129,717		$ 135,961
Development and licensing revenue	38		38		113		113
Total revenues	40,810		49,802		129,830		136,074
Instruments [Member]
Revenue from External Customer [Line Items]
Product and service revenues, net	8,161	[1]	13,969	[1]	30,373	[1]	35,456	[1]
Consumables [Member]
Revenue from External Customer [Line Items]
Product and service revenues, net	28,096	[2]	32,786	[2]	87,394	[2]	91,680	[2]
Other Products And Services [Member]
Revenue from External Customer [Line Items]
Product and service revenues, net	$ 4,515	[3]	$ 3,009	[3]	$ 11,950	[3]	$ 8,825	[3]

[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.