Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019
Property, Plant and Equipment [Line Items]
Lessor term of contract	5 years
Instrument warranty term	1 year
Kits and accessories warranty term	60 days
Dividend yield (percent)	0.00%
Right of use assets	$ 3,917
Lessee lease liabilities	$ 4,029
Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	1 year
Operating leases term	2 years
Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	7 years
Operating leases term	6 years
Diagnostic instruments
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
ASU 2016-02
Property, Plant and Equipment [Line Items]
Right of use assets		$ 600
Lessee lease liabilities		$ 600