Equity Investment in PACT Pharma - Additional Information (Details) - USD ($) shares in Millions	3 Months Ended		6 Months Ended		12 Months Ended	18 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2016	Jun. 30, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Gains on dilution of equity investment		$ 131,000		$ 613,000
Share of loss from equity method investee		(131,000)		(613,000)
PACT Pharma
Schedule of Equity Method Investments [Line Items]
Investment balance	$ 0	0	$ 0	0		$ 0	$ 0
Gains on dilution of equity investment		200,000		1,500,000
Share of loss from equity method investee	0	100,000	0	600,000
Unrealized loss on equity method investments	$ 800,000		$ 1,600,000			$ 2,900,000
Operating losses on equity method investments		100,000		600,000
PACT Pharma | Previously Reported
Schedule of Equity Method Investments [Line Items]
Losses on accumulated in prior periods of equity investment		$ 100,000		$ 900,000
PACT Pharma | Series A Preferred Stock
Schedule of Equity Method Investments [Line Items]
Purchase of common stock, shares					1.0
PACT Pharma | Common Stock
Schedule of Equity Method Investments [Line Items]
Purchase of common stock, shares					3.6