Equity - (Issue and Conversion) (Details)					9 Months Ended	12 Months Ended
	Jun. 10, 2016 USD ($) item $ / shares shares	May 06, 2016 USD ($) $ / shares shares	Apr. 29, 2016 USD ($)	Feb. 11, 2016 USD ($) item $ / shares shares	Sep. 30, 2016 USD ($) shares	Dec. 31, 2015 shares
Common stock issued (in shares) | shares		8,000,000
Sale price (in dollars per shares) | $ / shares		$ 0.50
Gross proceeds from common stock sale		$ 4,000,000
Equity issue costs		400,000
Proceeds from issuance of common stock, net of issue costs		$ 3,600,000			$ 3,599,000
Volatility (as a percent)					110.00%	85.00%
Applicable risk free interest rate (as a percent)					0.87%	1.48%
Common stock, shares issued | shares					88,920,041	53,335,333
Common stock, shares outstanding | shares					88,920,041	53,335,333
2016 Warrants
Number of common shares which can be purchased with each warrant | shares		0.75
Warrants outstanding (in shares) | shares		6,000,000
Exercise price of warrants (in dollars per share) | $ / shares		$ 0.75
Warrant becomes exercisable		6 months
Term of warrants		5 years
Warrant liability fair value			$ 3,600,000
Volatility (as a percent)			105.00%
Applicable risk free interest rate (as a percent)			0.74%
Sentient
Ownership (as a percent)					47.00%
Sentient Loan
Amount of debt converted to equity	$ 1,100,000			$ 3,900,000
Amount of accrued interest converted to equity	$ 34,000			$ 100,000
Equity shares issued upon conversion of debt | shares	4,011,740			23,355,000
Exercise price per share of shares converted from debt | $ / shares	$ 0.289			$ 0.172
Stock price trigger (as a percent)	90.00%			90.00%
Consecutive trading days, period | item	15			15
Debt outstanding	$ 0				$ 0