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Schedule of Consolidated Revenues Generated by Unaffiliated Customers (Details) - Revenue Benchmark [Member] - Product Concentration Risk [Member]	3 Months Ended				9 Months Ended
	Sep. 30, 2021		Sep. 30, 2020		Sep. 30, 2021		Sep. 30, 2020
Medicare For Determa Rx [Member]
Product Information [Line Items]
Concentration risk, percentage	23.00%		35.00%		23.00%		27.00%
Medicare Advantage for DetermaRx [Member]
Product Information [Line Items]
Concentration risk, percentage	16.00%		0.00%	[1]	17.00%		0.00%	[1]
Pharma Services Company A [Member]
Product Information [Line Items]
Concentration risk, percentage	0.00%	[1]	0.00%	[1]	0.00%	[1]	21.00%
Pharma Services Company B [Member]
Product Information [Line Items]
Concentration risk, percentage	0.00%	[1]	28.00%		0.00%	[1]	22.00%
Pharma Services Other [Member]
Product Information [Line Items]
Concentration risk, percentage	26.00%		26.00%		11.00%		27.00%
License Company D [Member]
Product Information [Line Items]
Concentration risk, percentage	0.00%	[1]	0.00%	[1]	25.00%		0.00%	[1]
License Company B [Member]
Product Information [Line Items]
Concentration risk, percentage	26.00%	[1]	0.00%	[1]	12.00%		0.00%	[1]
[1] Less than 10%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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