Shareholders' Equity - Additional Information (Detail) - USD ($)			1 Months Ended					12 Months Ended
	Dec. 31, 2014	Sep. 12, 2013	Jan. 31, 2015	Nov. 30, 2014	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2011	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 30, 2010	Mar. 31, 2002
Class of Stock [Line Items]
Preferred stock, authorized (in shares)	1,000,000							1,000,000	1,000,000
Preferred stock, par value (in dollars per share)	$ 0.01							$ 0.01	$ 0.01
Dividends declared, share, preferred stock purchase right for outstanding common stock													1
Exercise Price								$ 0.01
Minimum ownership percentage for change								5.00%
Period for ownership change								3 years
Right plan expiration date					Jul. 03, 2013		Mar. 12, 2012
Right plan extended expiration date					Jul. 03, 2016		Jul. 03, 2013
Share based compensation expense, shares								13,106	23,562	28,083
Stock issued during period, shares as a part of consideration for the acquisition of Juniper Pharma Services		1,051,323
Proceeds from exercise of warrants								$ 0	$ 0
Conversion Threshold, 15% [Member]
Class of Stock [Line Items]
Preferred stock, conversion trigger, percentage ownership change													15.00%
Conversion Threshold, Greater than 15% and Less than 50% [Member]
Class of Stock [Line Items]
Preferred stock, conversion trigger, percentage ownership change													50.00%
Conversion Threshold, Revised, 4.99% [Member]
Class of Stock [Line Items]
Preferred stock, conversion trigger, percentage ownership change												4.99%
Shareholder Rights Plan [Member]
Class of Stock [Line Items]
Threshold ownership trigger percent	4.99%		9.99%
Series B Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Convertible preferred stock, shares issued upon conversion								20
Preferred stock, shares outstanding (in shares)	130							130	130
Preferred stock, liquidation preference per share								$ 100
Votes per share								1
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock redemption price per share								1,000
Preferred stock convertible to common stock, conversion price per share								$ 28.00
Average percentage of closing price								100.00%
Consecutive trading days required for conversion								3 days
Stock issued during period, shares, conversion of convertible securities						50					50
Dividend payable, preferred stock								5.00%
Preferred stock, redemption amount						$ 50,000					$ 50,000
Preferred stock, shares outstanding (in shares)	550							550	550
Series C Preferred Stock [Member] | Maximum [Member]
Class of Stock [Line Items]
Stock issued during period, shares, conversion of convertible securities								294,045
Series E Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)								$ 100
Preferred stock, shares outstanding (in shares)	0			22,740				0	0
Stock issued during period, shares, conversion of convertible securities				142,125
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, conversion amount, per one thousandth of a share								$ 30