CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Stockholders' 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, 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 income (loss), net of income taxes	(87)	(87)				(87)
Net income	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
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	3,083	3,083		3,083
Shares issued in connection with share-based compensation plans (in shares)			691
Share-based compensation	1,477	1,477		1,477
Purchase of treasury stock	(440)	(440)					(440)
Distribution to noncontrolling interests	(22)							(22)
Other comprehensive income (loss), net of income taxes	16	16				16
Net income	13,382	13,317			13,317			65
Balance at Jun. 30, 2013	128,809	128,576	29	104,075	26,553	(47)	(2,034)	233
Balance (in shares) at Jun. 30, 2013			29,285
Increase (Decrease) in Shareholders' Equity
Shares issued in connection with share-based compensation plans	5,369	5,369	1	5,368
Shares issued in connection with share-based compensation plans (in shares)			1,053
Share-based compensation	9,026	9,026		9,026
Shares issued in connection with the JSP contract renewal	20,100	20,100	2	20,098
Shares issued in connection with the JSP contract renewal (in shares)			1,500
Shares issued in connection with stock offering	71,478	71,478	4	71,474
Shares issued in connection with stock offering (in shares)			4,250
Excess tax benefits on share-based compensation awards	6,752	6,752		6,752
Purchase of treasury stock	(3,925)	(3,925)					(3,925)
Other comprehensive income (loss), net of income taxes	(7)	(7)				(7)
Net income	57,163	57,101			57,101			62
Balance at Jun. 30, 2014	$ 294,765	$ 294,470	$ 36	$ 216,793	$ 83,654	$ (54)	$ (5,959)	$ 295
Balance (in shares) at Jun. 30, 2014			36,088