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BUSINESS COMBINATIONS - Additional Information (Details) $ in Thousands			1 Months Ended	3 Months Ended		9 Months Ended
	May 01, 2019 USD ($) item shares	Jul. 02, 2018 USD ($) shares	May 01, 2019 USD ($) shares	Jun. 30, 2019 USD ($) shares	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) shares	Jun. 30, 2018 USD ($)	Sep. 30, 2018 shares	Jun. 29, 2018 USD ($)
Common Stock, Shares, Issued \| shares				10,496,669		10,496,669		10,245,277
Business Acquisition, Transaction Costs				$ 264		$ 264
Payments to Acquire Businesses, Gross						1,271
Revenues			$ 1,421	10,861	$ 6,039	28,830	$ 17,360
Net (loss) income			44	(426)	$ (75)	(1,080)	$ 6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 2,475		$ 2,475	$ 545		$ 545
Seventh Wave Laboratories LLC acquisition [Member]
Business Combination, Contingent Consideration, Asset		$ 9,234
Business Combination, Consideration Transferred		6,759
Escrow Deposit Disbursements Related to Property Acquisition		$ 750
Common Stock, Shares, Issued \| shares		1,500,000
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned									$ 2,475
Smithers Avanza Toxicology Services LLC Acquisition [Member]
Business Combination, Consideration Transferred	2,475
Escrow Deposit Disbursements Related to Property Acquisition	$ 125
Common Stock, Shares, Issued \| shares	200		200
Payments to Acquire Businesses, Gross	$ 1,271
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 394
Class of Warrant or Right, Covenants Period	5 years
Smithers Avanza Toxicology Services LLC Acquisition [Member] \| Promissory Note [Member]
Debt Instrument, Face Amount	$ 810		$ 810
Debt Instrument, Interest Rate, Effective Percentage	6.50%		6.50%
Lease Arrangements [Member] \| Smithers Avanza Toxicology Services LLC Acquisition [Member]
Lessee, Operating Lease, Term of Contract	5 years 8 months		5 years 8 months
Number of Lease Extension Terms \| item	2
Lessee, Operating Lease, Renewal Term	5 years		5 years
Lease Arrangements [Member] \| Smithers Avanza Toxicology Services LLC Acquisition [Member] \| Minimum [Member]
Operating Lease, Payments	$ 400
Lease Arrangements [Member] \| Smithers Avanza Toxicology Services LLC Acquisition [Member] \| Maximum [Member]
Operating Lease, Payments	$ 600