SEGMENT REPORTING INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012		Dec. 31, 2011
SEGMENT REPORTING INFORMATION [Abstract]
Minimum percentage of revenues or gross profit (loss) in order for customer group to be identified as reportable segment (in hundredths)					10.00%
Number of reportable segments					2
Segment Reporting Information [Line Items]
Revenue	$ 49,802		$ 37,850		$ 136,074		$ 113,878
Cost of revenues	23,726		17,372		64,026		52,156
Gross Profit	26,076		20,478		72,048		61,722
Medical Market [Member]
Segment Reporting Information [Line Items]
Revenue	8,977		8,147		25,267		22,636
Cost of revenues	4,282	[1]	3,514	[1]	11,286	[1]	10,180	[1]
Gross Profit	4,695	[1]	4,633	[1]	13,981	[1]	12,456	[1]
Veterinary Market [Member]
Segment Reporting Information [Line Items]
Revenue	39,865		28,467		107,299		87,684
Cost of revenues	17,980	[1]	12,472	[1]	48,582	[1]	37,893	[1]
Gross Profit	21,885	[1]	15,995	[1]	58,717	[1]	49,791	[1]
Other Market [Member]
Segment Reporting Information [Line Items]
Revenue	960	[2]	1,236	[2]	3,508	[2]	3,558	[2]
Cost of revenues	1,464	[1],[2]	1,386	[1],[2]	4,158	[1],[2]	4,083	[1],[2]
Gross Profit	$ (504)	[1],[2]	$ (150)	[1],[2]	$ (650)	[1],[2]	$ (525)	[1],[2]

[1] Includes certain prior period amounts by operating segment and unallocated items that were reclassified to conform to the current period presentation.

[2] Represents unallocated items, not specifically identified to any particular business segment.