Property and Equipment (Details) - USD ($)	1 Months Ended	12 Months Ended
	Aug. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Estimated Useful Lives	10 years
Property, Plant and Equipment, Gross		$ 6,110,000	$ 75,788,000
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		(5,815,000)	(61,741,000)
Net property and equipment		295,000	14,047,000
Proceeds from Sale of Buildings		11,900,000	0	$ 0
Land		2,700,000
Inventory, Buildings and Improvements		$ 7,900,000
Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		3 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		40 years
Computers and Software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 3,826,000	4,587,000
Computers and Software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		3 years
Computers and Software | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		5 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 1,867,000	5,629,000
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		5 years
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		7 years
Laboratory Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 0	3,279,000
Laboratory Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		3 years
Laboratory Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		7 years
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 417,000	417,000
Leasehold Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		3 years
Leasehold Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		7 years
Buildings
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 0	59,212,000
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		15 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives		40 years
Land
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 0	$ 2,664,000