SEGMENT REPORTING INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015 Segment		Mar. 31, 2014		Mar. 31, 2013
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]
Revenues	$ 52,017	$ 56,051	$ 50,471	$ 44,054	$ 39,216	$ 38,318	$ 43,541	$ 40,956	$ 202,593		$ 162,031		$ 180,878
Cost of revenues									93,623		78,081		79,903
Gross profit	23,609	27,268	22,395	20,351	20,989	19,415	22,176	21,370	108,970		83,950		100,975
Medical Market [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenues									35,364		28,134		31,643
Cost of revenues									18,730		15,623		15,179
Gross profit									16,634		12,511		16,464
Veterinary Market [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenues									164,018		130,859		145,363
Cost of revenues									74,752		62,350		64,586
Gross profit									89,266		68,509		80,777
Other Market [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenues									3,211	[1]	3,038	[1]	3,872	[1]
Cost of revenues									141	[1]	108	[1]	138	[1]
Gross profit									$ 3,070	[1]	$ 2,930	[1]	$ 3,734	[1]

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