Stockholders' Equity and Non-controlling Interest - Narrative (Details) - USD ($)				3 Months Ended			9 Months Ended
	Jul. 30, 2015	Mar. 04, 2015	Mar. 04, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 03, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Procceds from issuance of common stock			$ 20,000,000				$ 9,000	$ 18,357,000
Additional shares issuable under Share Exchange Agreement (in shares)				34,764,999			34,764,999		33,712,551
Outstanding Warrants
Accumulated Other Comprehensive Income (Loss) [Line Items]
Exercise price of warrant per share (in dollars per share)	$ 1.16
Number of warrants granted (in shares)	50,000
Exercisable term of warrants	10 days
Period after issuance when warrant is exercisable	720 days
Warrants, issuance expense recognized				$ 8,000	$ 7,000		$ 11,000	7,000
Rochon Capital Partners, Ltd.
Accumulated Other Comprehensive Income (Loss) [Line Items]
Common stock, shares outstanding, percentage of ownership				40.00%			40.00%
Additional shares issuable under Share Exchange Agreement (in shares)						25,240,676
Period for conditional transfer of right						10 days
Ownership interest acquired in all the stocks (as a percent)						15.00%
Underwritten Public Offering
Accumulated Other Comprehensive Income (Loss) [Line Items]
Procceds from issuance of common stock			$ 20,000,000
Warrants to purchase common stocks (in shares)		6,667,000	6,667,000
Sale of stock, price per share (in dollars per share)		$ 3.00	$ 3.00
Exercise price of warrant per share (in dollars per share)		$ 3.75	$ 3.75
Expiration period of warrants		5 years
Net proceeds from issuance of common stock			$ 17,800,000
Proceeds from warrant exercises							$ 25,000,000
Fair value of warrants			$ 9,000,000
Warrants, maximum beneficial ownership percentage without written notice		4.99%
Warrants, beneficial ownership percentage, period of notice to change ownership percentage		61 days
Warrants, maximum beneficial ownership percentage with written notice		9.99%
Over-Allotment Option
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants to purchase common stocks (in shares)		1,000,050	1,000,050
Option period of warrants		45 days
Number of warrants exercised (in shares)		113,200
Number of warrants issued to underwriters (in shares)		166,675	166,675
At-the-Market Issuance Sales Agreement | MLV & Co. LLC
Accumulated Other Comprehensive Income (Loss) [Line Items]
Procceds from issuance of common stock								$ 684,000
Maximum aggregate offering price of common stock issuable under Sales Agreement										$ 25,000,000
Stock issued during period (in shares)					0		0	101,083