Equity (Details) (USD $)	3 Months Ended	12 Months Ended	0 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 10, 2014	Sep. 04, 2014
Applicable risk free interest rate (as a percent)	1.30%	1.60%
Share price (in dollars per share)	$ 0.41	$ 0.54
Stock volatility (as a percent)	85.00%	90.00%
Value of shares		$ 1,539,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Registered Offering
Registered offering stock units (in shares)			3,692,000
Sale price (in dollars per shares)			$ 0.86
Number of shares of common stock per capital unit (in shares)			1
Number of common shares which can be purchased with each warrant			0.50
Exercise price of warrants (in dollars per share)			1.21
Term of warrants			5 years
Net proceeds from offering			2,700,000	1,500,000
Amount of underwriting commissions and expenses			500,000
Applicable risk free interest rate (as a percent)				1.60%
Share price (in dollars per share)				$ 1.01
Fair value of warrants				1,200,000
Private Placement | Sentient
Units issued (in shares)			5,800,000
Sale price (in dollars per shares)			$ 0.817
Number of shares of common stock per capital unit (in shares)			1
Number of common shares which can be purchased with each warrant			0.50
Exercise price of warrants (in dollars per share)			1.21
Term of warrants			5 years
Net proceeds from offering			4,700,000	2,700,000
Amount of underwriting commissions and expenses			300,000
Applicable risk free interest rate (as a percent)				1.60%
Share price (in dollars per share)				$ 1.01
Fair value of warrants				$ 1,900,000
Ownership interest in outstanding Common Stock (as a percent)			27.20%