CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND NONCONTROLLING INTEREST - USD ($)	Preferred Shares [Member]	Common Shares [Member]	Additional paid-in capital [Member]	Accumulated deficit.	Accumulated deficit [Member]	Noncontrolling Interests	Total
Balance at Sep. 30, 2020	$ 25,000	$ 2,706,000	$ 26,775,000	$ (21,910,000)			$ 7,596,000
Balance (in shares) at Sep. 30, 2020	25	10,977,675
Consolidated net income (loss)	$ 0	$ 0	0	(366,000)	$ 0	$ 0	(366,000)
Stock option exercises		$ 6,000	39,000	0			45,000
Stock option exercises (in shares)		23,350
Stock based compensation	$ 0	$ 29,000	152,000	0	0	0	181,000
Stock based compensation (in shares)	0	116,974
Balance at Dec. 31, 2020	$ 25,000	$ 2,741,000	26,966,000	(22,276,000)			7,456,000
Balance (in shares) at Dec. 31, 2020	25	11,117,999
Balance at Sep. 30, 2020	$ 25,000	$ 2,706,000	26,775,000	(21,910,000)			7,596,000
Balance (in shares) at Sep. 30, 2020	25	10,977,675
Consolidated net income (loss)							1,513,000
Foreign currency translation adjustment							0
Balance at Jun. 30, 2021		$ 3,928,000	110,230,000	(20,397,000)			93,761,000
Balance (in shares) at Jun. 30, 2021		15,866,655
Balance at Dec. 31, 2020	$ 25,000	$ 2,741,000	26,966,000	(22,276,000)			7,456,000
Balance (in shares) at Dec. 31, 2020	25	11,117,999
Consolidated net income (loss)		$ 0	0	(723,000)			(723,000)
Stock option exercises		$ 9,000	56,000	0			65,000
Stock option exercises (in shares)		36,040
Stock based compensation		$ 3,000	275,000	0			278,000
Stock based compensation (in shares)		12,502
Preferred stock conversion	$ (25,000)	$ 3,000	22,000	0			0
Preferred stock conversion (in shares)	(25)	12,500
Balance at Mar. 31, 2021		$ 2,756,000	27,319,000	(22,999,000)			7,076,000
Balance (in shares) at Mar. 31, 2021		11,179,041
Consolidated net income (loss)		$ 0	0	2,602,000			2,602,000
Stock issued in acquisitions		$ 397,000	34,055,000	0			34,452,000
Stock issued in acquisitions (In shares)		1,588,235
Stock option exercises		$ 10,000	68,000	0			78,000
Stock option exercises (in shares)		39,910
Stock based compensation		$ 4,000	577,000	0			581,000
Stock based compensation (in shares)		15,352
Foreign currency translation adjustment							0
Equity Raise, net of fees		$ 761,000	48,211,000	0			48,972,000
Equity Raise, net of fees (in shares)		3,044,117
Balance at Jun. 30, 2021		$ 3,928,000	110,230,000	(20,397,000)			93,761,000
Balance (in shares) at Jun. 30, 2021		15,866,655
Balance at Sep. 30, 2021	$ 0	$ 3,945,000	112,198,000	(11,015,000)			105,128,000
Balance (in shares) at Sep. 30, 2021	0	15,931,485
Consolidated net income (loss)	$ 0	$ 0	0	(83,411,000)		364,000	(83,047,000)
Stock issued in acquisitions	$ 0	$ 2,094,000	459,289,000	0			461,383,000
Stock issued in acquisitions (In shares)	0	8,374,138
Noncontrolling interest related to Envigo acquisition	$ 0	$ 0	0	0		(983,000)	(983,000)
Issuance of stock under employee stock plans	$ 0	$ 11,000	38,000	0			49,000
Issuance of stock under employee stock plans (in shares)	0	42,971
Stock based compensation	$ 0	$ 0	19,160,000	0			19,160,000
Pension cost amortization	0	0	0	0	(110,000)		(110,000)
Foreign currency translation adjustment	0	0	0	0	247,000		247,000
Reclassification of convertible note embedded derivative to equity (Note 7)	0	0	88,576,000	0			88,576,000
Balance at Dec. 31, 2021	$ 0	$ 6,050,000	679,261,000	(94,426,000)	137,000	(619,000)	590,403,000
Balance (in shares) at Dec. 31, 2021	0	24,348,594
Balance at Sep. 30, 2021	$ 0	$ 3,945,000	112,198,000	(11,015,000)			105,128,000
Balance (in shares) at Sep. 30, 2021	0	15,931,485
Consolidated net income (loss)							$ (92,862,000)
Stock issued in acquisitions (In shares)							9,498,213
Foreign currency translation adjustment							$ (3,718,000)
Balance at Jun. 30, 2022	$ 0	$ 6,341,000	715,387,000	(104,646,000)	(3,306,000)	(143,000)	613,633,000
Balance (in shares) at Jun. 30, 2022	0	25,515,791
Balance at Dec. 31, 2021	$ 0	$ 6,050,000	679,261,000	(94,426,000)	137,000	(619,000)	590,403,000
Balance (in shares) at Dec. 31, 2021	0	24,348,594
Consolidated net income (loss)	$ 0	$ 0	0	(6,664,000)		577,000	(6,087,000)
Stock issued in acquisitions	$ 0	$ 276,000	32,599,000	0			32,875,000
Stock issued in acquisitions (In shares)	0	1,106,457
Noncontrolling interest related to Envigo acquisition	$ 0	$ 0	0	0		(191,000)	(191,000)
Issuance of stock under employee stock plans	$ 0	$ 10,000	36,000	0			46,000
Issuance of stock under employee stock plans (in shares)	0	40,650
Stock based compensation	$ 0	$ 0	1,138,000	0			1,138,000
Pension cost amortization	0	0	0	0	340,000		340,000
Foreign currency translation adjustment	0	0	0	0	(1,105,000)	(9,000)	(1,114,000)
Balance at Mar. 31, 2022	0	$ 6,336,000	713,034,000	(101,090,000)	(628,000)	(242,000)	617,410,000
Balance (in shares) at Mar. 31, 2022		25,495,701
Consolidated net income (loss)	0	$ 0	0	(3,556,000)		(172,000)	(3,728,000)
Stock issued in acquisitions	$ 0	$ 4,000	360,000	0			$ 364,000
Stock issued in acquisitions (In shares)	0	17,618					17,618
Noncontrolling interest related to Envigo acquisition	$ 0	$ 0	0	0		(271,000)	$ (271,000)
Issuance of stock under employee stock plans	$ 0	$ 1,000	6,000	0			7,000
Issuance of stock under employee stock plans (in shares)	0	2,472
Stock based compensation	$ 0	$ 0	1,987,000	0			1,987,000
Stock based compensation (in shares)	0	0
Pension cost amortization	$ 0	$ 0	0	0	173,000		173,000
Foreign currency translation adjustment	0	0	0	0	(2,851,000)		(2,851,000)
Balance at Jun. 30, 2022	$ 0	$ 6,341,000	$ 715,387,000	$ (104,646,000)	$ (3,306,000)	$ (143,000)	$ 613,633,000
Balance (in shares) at Jun. 30, 2022	0	25,515,791