Quarterly Financial Data (Unaudited) (Detail) (USD $)	3 Months Ended													12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]
Revenue from services	$ 109,178,547	[1]	$ 108,047,986	$ 110,768,343	$ 110,315,840	[2]	$ 111,730,808	[3]	$ 112,257,707	[3]	$ 108,847,135	[3]	$ 109,799,496	$ 438,310,716	$ 442,635,146	$ 439,377,460
Gross profit	28,561,465	[1]	28,184,087	27,838,891	28,875,395	[2]	27,943,467	[3]	27,455,827	[3]	27,136,129	[3]	29,049,682
(Loss) income from continuing operations, net of tax	(52,922,043)	[1]	1,453,590	(1,435,829)	(1,345,729)	[2]	(2,985,180)	[3]	719,539	[3]	(18,841,283)	[3]	361,955	(54,250,011)	(20,744,969)	1,547,639
Income (loss) from discontinued operations, net of tax	337,234	[1]	(538,916)	(21,393)	2,503,763	[2]	(6,548,030)	[3]	(18,319,626)	[3]	4,337,450	[3]	(946,322)	2,280,688	(21,476,528)	2,550,210
Net (loss) income	$ (52,584,809)	[1]	$ 914,674	$ (1,457,222)	$ 1,158,034	[2]	$ (9,533,210)	[3]	$ (17,600,087)	[3]	$ (14,503,833)	[3]	$ (584,367)	$ (51,969,323)	$ (42,221,497)	$ 4,097,849
Basic income (loss) per common share from:
Continuing operations (usd per share)	$ (1.70)	[1]	$ 0.05	$ (0.05)	$ (0.04)	[2]	$ (0.10)	[3]	$ 0.02	[3]	$ (0.61)	[3]	$ 0.01	$ (1.75)	$ (0.67)	$ 0.05
Discontinuing operations (usd per share)	$ 0.01	[1]	$ (0.02)	$ 0.00	$ 0.08	[2]	$ (0.21)	[3]	$ (0.59)	[3]	$ 0.14	[3]	$ (0.03)	$ 0.07	$ (0.70)	$ 0.08
Net (loss) income (usd per share)	$ (1.69)	[1]	$ 0.03	$ (0.05)	$ 0.04	[2]	$ (0.31)	[3]	$ (0.57)	[3]	$ (0.47)	[3]	$ (0.02)	$ (1.68)	$ (1.37)	$ 0.13
Diluted income (loss) per common share from:
Continuing operations (usd per share)	$ (1.70)	[1]	$ 0.05	$ (0.05)	$ (0.04)	[2]	$ (0.10)	[3]	$ 0.02	[3]	$ (0.61)	[3]	$ 0.01	$ (1.75)	$ (0.67)	$ 0.05
Discontinuing operations (usd per share)	$ 0.01	[1]	$ (0.02)	$ 0.00	$ 0.08	[2]	$ (0.21)	[3]	$ (0.59)	[3]	$ 0.14	[3]	$ (0.03)	$ 0.07	$ (0.70)	$ 0.08
Net (loss) income (usd per share)	$ (1.69)	[1]	$ 0.03	$ (0.05)	$ 0.04	[2]	$ (0.31)	[3]	$ (0.57)	[3]	$ (0.47)	[3]	$ (0.02)	$ (1.68)	$ (1.37)	$ 0.13

[1] On December 2, 2013, the Company acquired the operating assets of On Assignment, Inc.’s Allied Healthcare Staffing division. The acquisition has been accounted for in accordance with FASB ASC Topic 805-Business Combinations, using the purchase method. The results of On Assignment's operations have been included in the Company's consolidated statements of operations since December 2, 2013, the date of the acquisition. See Note 5 - Acquisitions. During the fourth quarter of 2013, the Company recorded a deferred tax assets valuation allowance of approximately $48,406,398 and a trade names impairment charge of $6,400,000. See Note 12 - Income Taxes and Note 4 - Goodwill, Trade Names and Other Identifiable Intangible Assets.

[2] The Company sold its clinical trial services business on February 15, 2013. The clinical trial services business has been classified as discontinued operations. The transaction resulted in a gain on sale of $3,968,714 pretax, or $2,055,907 after tax. See Note 3 – Assets Held for Sale and Discontinued Operations.

[3] During the second, third and fourth quarters of 2012, the Company recorded impairment charges of approximately $18,732,000, $23,500,000 and $11,900,000, respectively. See Note 4 – Goodwill, Trade Names and Other Identifiable Intangible Assets and Note 3 – Assets Held for Sale and Discontinued Operations.