Marketing, Licensing and Distribution Agreements - Vivus (Details)			12 Months Ended
	Jan. 18, 2022 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Decrease in API purchase commitment			$ 114,997
API purchase commitment asset			1,419,538	$ 1,304,541
Settlement Agreement | Vivus, Inc
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Inventory amount retained - API	$ 7,300,000
Amount due under the agreement	12,400,000
Amount of forgiveness related to returned goods and minimum purchase commitments	4,250,000
Payment made for purchase order	$ 1,542,904
Percentage of stendra tablets released	50
Threshold number of days to release remaining percentage of stendra Tablets upon satisfaction	180 days
Accrued inventory purchases			142,000,000	14,200,000
Reserve			800,000
Settlement Agreement | Vivus, Inc | Other current assets
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
API purchase commitment asset			1,400,000	1,300,000
Settlement Agreement | Vivus, Inc | Other noncurrent assets
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Accrued inventory purchases, non-current			11,000,000.0	11,100,000
Settlement Agreement | Vivus, Inc | Promissory Note
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Principal amount of notes payable	$ 10,201,758
Prepayment amount	$ 900,000
Stated interest rate	6.00%
Interest rate upon default	9
License Agreement | Royalty on the first $500 million of net sales
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Threshold net sales			500,000,000
License Agreement | Milestone payment to be paid once $250 million in sales has been reached
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Threshold net sales			250,000,000
Milestone payment			6,000,000
License Agreement | Milestone payment to be paid after $250 million in sales has been reached
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Threshold net sales			250,000,000
Milestone payment			$ 3,200,000
License Agreement | Vivus, Inc
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
One-time fee to purchase and receive the license for the commercialization and exploitation of Stendra		$ 70,000,000
License Agreement | Vivus, Inc | Royalty during the first, second, and third years following the expiration of the Royalty Period
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty percentage			2.00%
License Agreement | Vivus, Inc | Royalty following the fourth and fifth years following the end of the Royalty Period
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty percentage			1.00%
License Agreement | MTPC
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty incurred			$ 221,211	317,875
Royalty payables				$ 8,728
Royalty receivable			$ 81,136
License Agreement | MTPC | Royalty on the first $500 million of net sales
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty percentage			5.00%
License Agreement | MTPC | Royalty on net sales after $500 million
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Royalty percentage			6.00%