Stockholders' Equity - Additional Information (Detail) - USD ($)					3 Months Ended
	Mar. 18, 2016	Jul. 22, 2015	Apr. 04, 2015	Apr. 04, 2013	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Stockholders Equity [Line Items]
Subscription value of preferred shares					$ 250,000
Proceeds from issuance of preferred stock					$ 250,000
Preferred stock converted into common stock					3,468,804		1,826,381
Common stock, shares outstanding					13,187,544	13,187,544
Series A Convertible Preferred Stock [Member]
Stockholders Equity [Line Items]
Series A Convertible Preferred stock, shares authorized					40,000,000	40,000,000
Series A Convertible Preferred stock, shares outstanding					1,041	1,041
Exchange and Redemption Agreement with Sabby Healthcare Volatility Master Fund, Ltd. [Member]
Stockholders Equity [Line Items]
Common stock, shares outstanding		16,656,348			13,187,544
Increase in common stock outstanding, percentage		26.00%
Granted common stock purchase warrants		3,485,908
Additional warrant shares to be granted		3,749,692
Common stock purchase warrants outstanding with anti-dilutive provisions		7,235,600
Weighted average price of warrant		$ 0.71
Exchange and Redemption Agreement with Sabby Healthcare Volatility Master Fund, Ltd. [Member] | Series A Convertible Preferred Stock [Member]
Stockholders Equity [Line Items]
Effective conversion price per share		$ 0.30
Series A Convertible Preferred stock, shares outstanding		1,176
Stated value per share for redemption		$ 1,000
Preferred stock redemption period		120 days
Maximum limit on indebtedness		$ 250,000
Preferred stock converted into common stock		3,918,667
Additional preferred stock converted into common stock		2,092,350
Exchange and Redemption Agreement with Sabby Healthcare Volatility Master Fund, Ltd. [Member] | Series A Convertible Preferred Stock [Member] | Maximum [Member]
Stockholders Equity [Line Items]
Effective conversion price per share		$ 0.64
Exchange and Redemption Agreement with Sabby Healthcare Volatility Master Fund, Ltd. [Member] | Series A Convertible Preferred Stock [Member] | Minimum [Member]
Stockholders Equity [Line Items]
Effective conversion price per share		$ 0.30
Exchange and Redemption Agreement with Sabby Healthcare Volatility Master Fund, Ltd. [Member] | Share Purchase Agreement [Member] | Maximum [Member]
Stockholders Equity [Line Items]
Percentage of common stock issued and outstanding				10.00%
Exchange and Redemption Agreement with Sabby Healthcare Volatility Master Fund, Ltd. [Member] | Share Purchase Agreement [Member] | Series A Convertible Preferred Stock [Member]
Stockholders Equity [Line Items]
Series A Convertible Preferred stock, shares authorized				4,012
Proceeds from issuance of preferred stock				$ 4,000,000
Effective conversion price per share				$ 0.6437
Hypothetical Conversion on Exchange and Redemption Agreement with Sabby Healthcare Volatility Master Fund, Ltd. [Member] | Series A Convertible Preferred Stock [Member]
Stockholders Equity [Line Items]
Preferred stock converted into common stock		3,468,804
Pineworld Capital Limited [Member] | Series A Convertible Preferred Stock [Member]
Stockholders Equity [Line Items]
Proceeds from issuance of preferred stock	$ 250,000
Angionetics Inc. [Member] | Pineworld Capital Limited [Member]
Stockholders Equity [Line Items]
Subscription value of preferred shares	$ 250,000
Shenzhen Qianhai Taxus [Member]
Stockholders Equity [Line Items]
Business acquisition, date of agreement					Apr. 04, 2015
Business acquisition, purchase of number of shares			600,000
Business acquisition, purchase price			$ 3,000,000
Payment for business acquisition			$ 600,000