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DEBT (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Sep. 30, 2019
DEBT ARRANGEMENTS    
Long-term Debt $ 20,854 $ 15,087
Less: Current portion (1,923) (1,109)
Less: Debt issue costs not amortized (281) (207)
Total Long-term debt 18,650 13,771
Construction and Equipment Loans [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 5,484 4,301
Term Loan [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 13,806 9,662
Initial Term Loan [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 3,870 3,990
Second Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 4,364 4,715
Third Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,209 1,271
Fourth Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,493 0
Fifth Term loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,922 0
Initial Capex Line    
DEBT ARRANGEMENTS    
Long-term Debt 948 0
Smithers Avanza Toxicology Services LLC acquisition | Unsecured promissory note    
DEBT ARRANGEMENTS    
Long-term Debt 780 810
PCRS acquisition | Unsecured promissory note    
DEBT ARRANGEMENTS    
Long-term Debt $ 784 $ 0