Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended												6 Months Ended	12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Dec. 31, 2009	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2012 Cody Laboratories, Inc.	Apr. 10, 2007 Cody Laboratories, Inc.	Apr. 10, 2007 Net operation loss (NOL) carry forwards at the date of acquisition expiring in 2026 Cody Laboratories, Inc.	Apr. 10, 2007 Net operation loss (NOL) carry forwards at the date of acquisition expiring in 2027 Cody Laboratories, Inc.
Current Income Taxes
Federal														$ 1,513	$ (3,179)	$ 4,056
State and Local Taxes														5	(132)	575
Total														1,518	(3,311)	4,631
Deferred Income Taxes
Federal														828	2,617	(796)
State and Local Taxes													(650)	254	233	978
Total													(650)	1,082	2,850	182
Total tax (benefit) provision	812	1,057	519	212	(1,015)	(450)	1,394	(390)	1,288	527	1,170	1,828		2,600	(461)	4,813
Reconciliation of the company's federal statutory tax rate to its effective rate
Federal income tax at statutory rate (as a percent)														34.00%	34.00%	34.00%
State and local income tax, net (as a percent)														2.60%	0.20%	3.70%
Nondeductible expenses (as a percent)														5.70%	(35.10%)	2.10%
Change in valuation allowance (as a percent)														2.00%	2.70%	(0.60%)
Income tax credits (as a percent)														(3.60%)	83.30%	(8.20%)
Change in tax laws (as a percent)																5.00%
Change in state nexus position (as a percent)															(24.00%)
Other (as a percent)														(1.40%)	4.70%	1.50%
Effective income tax rate (as a percent)										20.00%	95.00%			39.30%	65.80%	37.50%
Deferred tax assets:
Accrued expenses	74				182									74	182
Share-based compensation expense	1,088				959									1,088	959
Unearned grant funds					33										33
Reserve for returns	2,049				1,901									2,049	1,901
Reserves for accounts receivable and inventory	3,259				3,173									3,259	3,173
Intangible impairment	7,956				9,090									7,956	9,090
State net operating loss	100				208									100	208
Federal net operating loss	967				1,093									967	1,093
Impairment on Cody note receivable	1,998				1,997									1,998	1,997
Accumulated amortization on intangible asset	2,238				2,117									2,238	2,117
Foreign net operating loss	114				35									114	35
Other	133													133
Total deferred tax asset	19,976				20,788									19,976	20,788		2,844	3,774	1,902	1,872
Valuation allowance	(2,112)				(2,032)									(2,112)	(2,032)
Total	17,864				18,756									17,864	18,756
Deferred tax liabilities:
Prepaid expenses	63				60									63	60
Property, plant and equipment	3,899				3,637									3,899	3,637
Other					75										75
Net deferred tax asset	$ 13,902				$ 14,984									$ 13,902	$ 14,984