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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Related Party Transactions [Abstract]
Period after end of month when related party balances are paid or received			30 days
Related Party [Member] | Leasing of Office and Laboratory Space [Member]
Related Party Transactions [Abstract]
Payments to related party	$ 80	$ 241	$ 80	$ 241
4C [Member] | Leasing of Office and Laboratory Space [Member]
Related Party Transactions [Abstract]
Payments to related party	36	36	112	117
4C [Member] | Prefunding of Acquisition of Certain Shared Capital Assets [Member] | Other Assets [Member]
Related Party Transactions [Abstract]
Payments to related party	0		0		$ 738
4C [Member] | Monthly Services Under Amended and Restated Technology Services Agreement [Member]
Related Party Transactions [Abstract]
Related party expenses	203	$ 396	1,782	$ 1,073
4C [Member] | Monthly Services Under Amended and Restated Technology Services Agreement [Member] | Prepaid Expenses and Other Current Assets [Member]
Related Party Transactions [Abstract]
Due from related parties	0		0		13
4C and Other Companies Controlled by Rothberg Family [Member] | Termination of ARTSA [Member]
Related Party Transactions [Abstract]
Related party expenses			700
Other Companies Controlled by Rothberg Family [Member] | Payments Made to Third Parties on Behalf of the Company Under ARTSA [Member] | Accounts Payable [Member]
Related Party Transactions [Abstract]
Due to related parties	170		170		28
Other Companies Controlled by Rothberg Family [Member] | Payments Made to Third Parties on Behalf of Other Entities Under ARTSA [Member] | Prepaid Expenses and Other Current Assets [Member]
Related Party Transactions [Abstract]
Due from related parties	158		158		69
PEI [Member] | Binders Collaboration [Member]
Related Party Transactions [Abstract]
Payments to related party	0		0
President and Chief Operating Officer and Other Company Employees [Member] | Promissory Notes [Member]
Related Party Transactions [Abstract]
Due from related parties	0		0		$ 150
Dr. Rothberg [Member] | Executive Chairman Agreement [Member]
Related Party Transactions [Abstract]
Payments to related party	$ 25		25
Annual amount of transaction with related party			$ 400

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The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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