DEBT - Narrative (Details)											1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 13, 2024 USD ($) shares	Jun. 02, 2024 USD ($)	May 14, 2024 USD ($)	Jan. 09, 2023 USD ($)	Dec. 29, 2022 day	Jan. 27, 2022 USD ($)	Jan. 07, 2022 USD ($)	Nov. 27, 2021 day	Nov. 05, 2021 USD ($)	Sep. 27, 2021 USD ($) $ / shares	Mar. 31, 2022 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Aug. 07, 2024 USD ($)	Jul. 27, 2024	Oct. 12, 2022 USD ($)	Oct. 04, 2021 USD ($)	May 03, 2021 USD ($)
DEBT
Volunteer principal prepayments (as percentage)									0.0100
Cash and cash equivalents held on hand domestically				$ 10,000,000
Consideration to be paid-in-kind (as a percent)				0.50%
Consideration to be paid in cash upon prepayments (as a percent)				0.50%
Consideration to be paid in cash upon permanent reductions (as a percent)				7.00%
Total debt, net of unamortized debt issuance costs												$ 396,542,000		$ 396,542,000		$ 393,339,000
Unamortized Debt Issuance Expense												12,637,000		12,637,000		11,950,000
Seventh Amendment Purchasers
DEBT
Stock issued in exchange of warrants exercised (in shares) | shares	3,946,250
Seventh Amendment Structuring Agent
DEBT
Stock issued in exchange of warrants exercised (in shares) | shares	200,000
Maximum | Secured Overnight Financing Rate (SOFR)
DEBT
Debt instrument, adjustment rate					0.0042826
Minimum | Secured Overnight Financing Rate (SOFR)
DEBT
Variable interest rate (as a percent)				1.00%	1.00%
Credit Agreement
DEBT
Maximum amount of line of credit	$ 22,550,000
Basis points adjustments (as percentage)				0.50%	0.50%
Debt instrument, financial statement threshold | day					30
Debt instrument, financial statement threshold to provide cash flow forecast | day					10
Debt instrument, financial statement threshold to meet under the amended credit agreement					6 months
Debt Instrument, Covenant, Cap On Funds Reinvestment												$ 5,000,000		$ 5,000,000
Debt Instrument, Covenant, Charges Or Expenses Addback Limit	$ 32,000,000
Credit Agreement | Line Of Credit Facility, Initial Leverage Ratio
DEBT
Threshold secured leverage ratio									4.25
Credit Agreement | Line Of Credit Facility, Leverage Ratio To Be Maintained Beginning Quarter Ending September 30, 2023
DEBT
Threshold secured leverage ratio									3.75
Credit Agreement | Line Of Credit Facility, Leverage Ratio To Be Maintained Beginning Quarter Ending March 31, 2025
DEBT
Threshold secured leverage ratio									3.00
Credit Agreement | Line Of Credit Facility, Minimum Fixed Charge Coverage Ratio To Be Maintained During First Anniversary
DEBT
Threshold secured leverage ratio									1.00
Credit Agreement | Line Of Credit Facility, Minimum Fixed Charge Coverage Ratio To Be Maintained From And After First Anniversary
DEBT
Threshold secured leverage ratio									1.10
Credit Agreement | Debt Instrument, Covenant, Weekly Liquidity, Period One
DEBT
Debt Instrument, Covenant, Weekly Liquidity Requirement																	$ 7,000,000
Credit Agreement | Debt Instrument, Covenant, Weekly Liquidity, Period Two
DEBT
Debt Instrument, Covenant, Weekly Liquidity Requirement																	17,500,000
Credit Agreement | Debt Instrument, Covenant, Weekly Liquidity, Period Three
DEBT
Debt Instrument, Covenant, Weekly Liquidity Requirement																	$ 10,000,000
Credit Agreement | Base Rate
DEBT
Basis points adjustments (as percentage)				1.00%	1.00%
Credit Agreement | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)									6.25%
Credit Agreement | Prime Rate
DEBT
Basis points adjustments (as percentage)									5.25%
Credit Agreement | Maximum | Base Rate
DEBT
Basis points adjustments (as percentage)				8.50%	5.50%
Credit Agreement | Maximum | Secured Overnight Financing Rate (SOFR)
DEBT
Basis points adjustments (as percentage)				9.50%	6.50%
Variable interest rate (as a percent)				0.42826%
Credit Agreement | Maximum | Prime Rate
DEBT
Basis points adjustments (as percentage)									5.50%
Credit Agreement | Minimum
DEBT
Variable interest rate (as a percent)									1.00%
Credit Agreement | Minimum | Base Rate
DEBT
Basis points adjustments (as percentage)				5.75%	5.00%
Variable interest rate (as a percent)				2.00%	2.00%
Credit Agreement | Minimum | Secured Overnight Financing Rate (SOFR)
DEBT
Basis points adjustments (as percentage)				6.75%	6.00%
Variable interest rate (as a percent)				0.11448%
Debt instrument, adjustment rate					0.0011448
Credit Agreement | Minimum | Prime Rate
DEBT
Basis points adjustments (as percentage)									5.00%
Term Loan
DEBT
Maximum amount of line of credit						$ 40,000,000			$ 165,000,000										$ 35,000,000
Maximum term for drawing loan facility						24 months
Volunteer principal prepayments (as percentage)						0.0100
Effective rate (as percentage)												11.41%	11.67%	11.55%	11.43%
Term Loan | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)						6.25%
Term Loan | Maximum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)						6.50%
Term Loan | Minimum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)						6.00%
Delayed Draw Term Loan
DEBT
Maximum amount of line of credit									$ 35,000,000
Maximum term for drawing loan facility									18 months
Commitment fee (as percentage)									1.00%
Proceeds from Delayed Draw Term Loan							$ 35,000,000
Effective rate (as percentage)												11.39%	11.66%	11.53%	11.41%
Delayed Draw Term Loan | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)							6.25%
Delayed Draw Term Loan | Maximum
DEBT
Basis points adjustments (as percentage)									6.50%
Delayed Draw Term Loan | Maximum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)							6.50%
Delayed Draw Term Loan | Minimum
DEBT
Basis points adjustments (as percentage)									6.00%
Delayed Draw Term Loan | Minimum | London Interbank Offered Rate (LIBOR)
DEBT
Basis points adjustments (as percentage)							6.00%
Credit Facility Term Loan and Delayed Draw Term Loan
DEBT
Annual principal payments (as percentage)									1.00%
Revolving Credit Facility
DEBT
Maximum amount of line of credit												$ 15,000,000		$ 15,000,000
Commitment fee (as percentage)									0.50%
Charges and costs allowed to be added back to the Company's consolidated EBITDA		$ 28,500,000	$ 26,500,000
Commitment fee payable to consenting lender party (percent)		$ 0.0050
Outstanding balance												$ 0		$ 0		0
Additional Term Loans
DEBT
Annual principal payments (as percentage)						1.00%
Effective rate (as percentage)												11.52%	11.78%	11.66%	11.54%
Seller Note – Bolder BioPath (related party) | Unsecured Debt
DEBT
Principal amount																					$ 1,500,000
Interest Rate (as a percent)																					4.50%
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Long-Term Debt											$ 470,000
Seller Note – Preclinical Research Services | Unsecured Debt
DEBT
Principal amount						$ 800,000
Interest Rate (as a percent)						4.50%
Seller Payable - Orient BioResource Center | Unsecured Debt
DEBT
Principal amount						$ 3,700,000
Interest Rate (as a percent)																		4.60%
Fair value of debt						$ 3,325,000
Period for payment of consideration						18 months
Seller Note – Histion (related party) | Unsecured Debt
DEBT
Principal amount																				$ 433,000
Interest Rate (as a percent)																				4.50%
Convertible Senior Notes
DEBT
Principal amount										$ 140,000,000
Interest Rate (as a percent)										3.25%
Interest expense												$ 2,934,000	$ 2,948,000	$ 8,675,000	$ 8,755,000
Amortization of debt discount and issuance costs												$ 236,000	$ 237,000	697,000	704,000
Effective rate (as percentage)												9.38%	9.38%
Settlement period										13 days
Additional principal amount										$ 15,000,000
Initial conversion rate								21.7162
Initial conversion price (in dollars per share) | $ / shares										$ 46.05
Unamortized debt issuance costs												$ 2,334,000		2,334,000		3,031,000
Coupon interest expense												1,068,000	$ 1,131,000	3,203,000	3,406,000
Accretion expense												1,630,000	$ 1,580,000	4,775,000	$ 4,645,000
Number of scheduled trading days | day								40
Conversion price								130.00%
Number of trading days | day								20
Number of consecutive trading days | day								30
Cure period								30 days
Cure or waiver period								60 days
Guarantor or subsidiaries for the payment										$ 20,000,000
Period for discharge or stay								60 days
Percentage of noteholders										25.00%
Right to receive special interest maximum term								180 days
Right to receive special interest maximum rate								0.50%
Convertible Senior Notes
DEBT
Interest expense												992,000		2,981,000
Amortization of debt discount and issuance costs												181,000		496,000
Unamortized Debt Issuance Expense												1,333,000		1,333,000		$ 1,563,000
Interest and Debt Expense												1,588,000		4,633,000
Accretion Expense												$ 415,000		$ 1,156,000
Convertible Senior Notes | Convertible Debt | Seventh Amendment Purchasers
DEBT
Debt Instrument, Repurchased Face Amount										$ 8,333,000
Total debt, net of unamortized debt issuance costs										$ 131,667
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt
DEBT
Interest Rate (as a percent)												15.00%		15.00%
Cure period	30 days
Debt Instrument, Covenant, Aggregate Holders Of Debt, Percent												30.00%		30.00%
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Debt Instrument, Redemption, Period One
DEBT
Debt Instrument, Redemption Price, Percentage	100.00%
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Debt Instrument, Redemption, Period Two
DEBT
Debt Instrument, Redemption Price, Percentage	102.00%
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Debt Instrument, Redemption, Period Three
DEBT
Debt Instrument, Redemption Price, Percentage	100.00%
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Seventh Amendment Purchasers
DEBT
Proceeds from Issuance of Debt	$ 17,000,000
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Seventh Amendment Purchasers | Fair Value, Nonrecurring
DEBT
Debt Instrument, Repurchased Face Amount	22,000,000
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Seventh Amendment Structuring Agent
DEBT
Principal amount	550,000
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Debt Instrument, Covenant Period, Amendment Relief Period
DEBT
Debt Instrument, Covenant, Default Amount	8,625,000
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Debt Instrument, Covenant Period, After Amendment Relief Period
DEBT
Debt Instrument, Covenant, Default Amount	$ 17,250,000
Debt Instrument, Waiver Period After Acquisition Closing	90 days
Senior Secured Second Lien PIK Notes Due 2027 | Secured Debt | Debt Instrument, Covenant, 2024 Settlement
DEBT
Debt Instrument, Covenant, Default Amount	$ 11,500,000