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DEBT (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Sep. 30, 2019
DEBT ARRANGEMENTS    
Long-term Debt $ 25,052 $ 15,087
Less: Current portion (5,991) (1,109)
Less: Debt issue costs not amortized (235) (207)
Total Long-term debt 18,826 13,771
Construction and Equipment Loans [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 5,496 4,301
Term Loan [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 13,103 9,976
Initial Term Loan [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 3,748 3,990
Second Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 4,004 4,715
Third Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,115 1,271
Fourth Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,425 0
Fifth Term loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,891 0
Initial Capex Line    
DEBT ARRANGEMENTS    
Long-term Debt 920 0
Seller Note [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 752 0
Smithers Avanza Toxicology Services LLC acquisition | Unsecured promissory note    
DEBT ARRANGEMENTS    
Long-term Debt 650 810
PCRS acquisition | Unsecured promissory note    
DEBT ARRANGEMENTS    
Long-term Debt $ 5,051 $ 0