REVENUES BY PRODUCT CATEGORY AND GEOGRAPHIC REGION AND SIGNIFICANT CONCENTRATIONS, Concentration Risk (Details) - Customer Concentration Risk [Member] - Customer	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2015
Worldwide Revenues [Member]
Concentration Risk [Line Items]
Number of major customers	3	1	3	1
Worldwide Revenues [Member] | MWI Veterinary Supply [Member]
Concentration Risk [Line Items]
Revenue or accounts receivable by major customer	20.00%	20.00%	20.00%	18.00%
Worldwide Revenues [Member] | Henry Schein Animal Health [Member]
Concentration Risk [Line Items]
Revenue or accounts receivable by major customer	12.00%		12.00%
Worldwide Revenues [Member] | Patterson Companies [Member]
Concentration Risk [Line Items]
Revenue or accounts receivable by major customer	12.00%		10.00%
Accounts Receivable [Member]
Concentration Risk [Line Items]
Number of major customers			1		1
Revenue or accounts receivable by major customer			23.00%		26.00%