REVENUES BY PRODUCT AND SERVICE CATEGORY AND GEOGRAPHIC REGION AND SIGNIFICANT CONCENTRATIONS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended			12 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended				3 Months Ended				6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Customer Concentration Risk [Member] Litigation Settlement Receivable [Member]	Sep. 30, 2012 Worldwide Revenues [Member] Customer Concentration Risk [Member]	Sep. 30, 2011 Worldwide Revenues [Member] Customer Concentration Risk [Member]	Sep. 30, 2012 Worldwide Revenues [Member] Customer Concentration Risk [Member]	Sep. 30, 2011 Worldwide Revenues [Member] Customer Concentration Risk [Member]	Sep. 30, 2012 Accounts Receivable [Member] Customer Concentration Risk [Member]	Mar. 31, 2012 Accounts Receivable [Member] Customer Concentration Risk [Member]	Sep. 30, 2012 North America [Member]	Sep. 30, 2011 North America [Member]	Sep. 30, 2012 North America [Member]	Sep. 30, 2011 North America [Member]	Sep. 30, 2012 Europe [Member]	Sep. 30, 2011 Europe [Member]	Sep. 30, 2012 Europe [Member]	Sep. 30, 2011 Europe [Member]	Sep. 30, 2012 Asia Pacific and rest of the world [Member]	Sep. 30, 2011 Asia Pacific and rest of the world [Member]	Sep. 30, 2012 Asia Pacific and rest of the world [Member]	Sep. 30, 2011 Asia Pacific and rest of the world [Member]	Sep. 30, 2012 Instruments [Member]		Sep. 30, 2011 Instruments [Member]		Sep. 30, 2012 Instruments [Member]		Sep. 30, 2011 Instruments [Member]		Sep. 30, 2012 Consumables [Member]		Sep. 30, 2011 Consumables [Member]		Sep. 30, 2012 Consumables [Member]		Sep. 30, 2011 Consumables [Member]		Sep. 30, 2012 Other products and services [Member]		Sep. 30, 2011 Other products and services [Member]		Sep. 30, 2012 Other products and services [Member]		Sep. 30, 2011 Other products and services [Member]
Revenue from External Customer [Line Items]
Product and service revenues, net	$ 44,221	$ 39,978	$ 86,197	$ 75,943																				$ 11,607	[1]	$ 8,756	[1]	$ 21,487	[1]	$ 16,285	[1]	$ 29,412	[2]	$ 29,504	[2]	$ 58,894	[2]	$ 56,211	[2]	$ 3,202	[3]	$ 1,718	[3]	$ 5,816	[3]	$ 3,447	[3]
Development and licensing revenue	37	47	75	85
Total revenues	44,258	40,025	86,272	76,028								35,915	31,985	69,079	61,693	6,493	6,628	13,709	11,810	1,850	1,412	3,484	2,525
Revenues from External Customers [Line Items]
Total revenues	44,258	40,025	86,272	76,028								35,915	31,985	69,079	61,693	6,493	6,628	13,709	11,810	1,850	1,412	3,484	2,525
Concentration Risk [Line Items]
Number of major customers						1	1	1	1	1	1
Revenue or accounts receivable by major customer (in hundredths)					35.00%	13.00%	10.00%	13.00%	10.00%	11.00%	19.00%
Litigation Settlement Receivable	$ 17,250	$ 0	$ 17,250	$ 0

[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.