Summary of Significant Accounting Policies - Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)
Medical Indication Information
Total net sales	$ 133,920	$ 136,110	$ 260,399	$ 263,452
Number of reportable segments | segment			1
Analgesic
Medical Indication Information
Total net sales	3,572	2,111	$ 6,692	3,995
Anti-Psychosis
Medical Indication Information
Total net sales	13,317	22,697	26,345	50,730
Cardiovascular
Medical Indication Information
Total net sales	16,336	23,972	36,050	45,579
Central Nervous System
Medical Indication Information
Total net sales	24,614	19,331	47,139	38,588
Endocrinology
Medical Indication Information
Total net sales	9,496		12,729
Gastrointestinal
Medical Indication Information
Total net sales	18,575	18,313	35,675	35,275
Infectious Disease
Medical Indication Information
Total net sales	23,044	18,078	44,976	29,973
Migraine
Medical Indication Information
Total net sales	6,083	10,878	15,773	20,021
Respiratory/Allergy/Cough/Cold
Medical Indication Information
Total net sales	2,267	3,075	3,693	5,781
Urinary
Medical Indication Information
Total net sales	1,361	1,233	2,819	1,668
Other
Medical Indication Information
Total net sales	8,410	9,934	16,044	19,796
Contract manufacturing revenue
Medical Indication Information
Total net sales	$ 6,845	$ 6,488	$ 12,464	$ 12,046