CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - 9 months ended Mar. 31, 2017 - USD ($) shares in Thousands, $ in Thousands	Stockholders' Equity Attributable to Lannett Co., Inc.	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interest	Total
Balance at Jun. 30, 2016	$ 554,049	$ 37	$ 283,301	$ 278,355	$ (295)	$ (7,349)	$ 408	$ 554,457
Balance (in shares) at Jun. 30, 2016		37,150
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	2,276		2,276					2,276
Shares issued in connection with share-based compensation plans (in shares)		333
Share-based compensation	5,962		5,962					5,962
Excess tax benefits on share-based compensation awards	725		725					725
Purchase of noncontrolling interest	(1,058)		(1,058)				(442)	(1,500)
Purchase of treasury stock	(1,840)					(1,840)		(1,840)
Other comprehensive income, net of income tax	114				114			114
Net income (loss)	(6,307)			(6,307)			$ 34	(6,273)
Balance at Mar. 31, 2017	$ 553,921	$ 37	$ 291,206	$ 272,048	$ (181)	$ (9,189)		$ 553,921
Balance (in shares) at Mar. 31, 2017		37,483