CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Shareholders' Equity Attributable to Lannett Co., Inc.	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (loss)	Treasury Stock	Noncontrolling Interest
Balance at Jun. 30, 2009	$ 77,649	$ 77,555	$ 25	$ 76,250	$ 1,744	$ 25	$ (489)	$ 94
Balance (in shares) at Jun. 30, 2009			24,518
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share based compensation plans	1,805	1,805		1,805
Shares issued in connection with share based compensation plans (in shares)			364
Share based compensation	1,748	1,748		1,748
Tax benefit on stock options exercised	60	60		60
Purchase of treasury stock	(162)	(162)					(162)
Distribution to noncontrolling interests	(169)							(169)
Other comprehensive (loss) income, net of income tax	20	20				20
Net income (loss)	8,008	7,821			7,821			187
Balance at Jun. 30, 2010	88,959	88,847	25	79,863	9,565	45	(651)	112
Balance (in shares) at Jun. 30, 2010			24,882
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share based compensation plans	501	501		501
Shares issued in connection with share based compensation plans (in shares)			272
Share based compensation	1,824	1,824		1,824
Shares issued in connection with public stock offering	14,950	14,950	3	14,947
Shares issued in connection with public stock offering (in shares)			3,250
Tax benefit on stock options exercised	(53)	(53)		(53)
Purchase of treasury stock	(221)	(221)					(221)
Distribution to noncontrolling interests	(10)							(10)
Other comprehensive (loss) income, net of income tax	(21)	(21)				(21)
Net income (loss)	(240)	(277)			(277)			37
Balance at Jun. 30, 2011	105,689	105,550	28	97,082	9,288	24	(872)	139
Balance (in shares) at Jun. 30, 2011			28,404
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share based compensation plans	272	272	1	271
Shares issued in connection with share based compensation plans (in shares)			190
Share based compensation	2,162	2,162		2,162
Purchase of treasury stock	(722)	(722)					(722)
Distribution to noncontrolling interests	(19)							(19)
Other comprehensive (loss) income, net of income tax	(87)	(87)				(87)
Net income (loss)	4,018	3,948			3,948			70
Balance at Jun. 30, 2012	$ 111,313	$ 111,123	$ 29	$ 99,515	$ 13,236	$ (63)	$ (1,594)	$ 190
Balance (in shares) at Jun. 30, 2012			28,594