Description of the Business and Liquidity (Details) (USD $)	3 Months Ended
	Sep. 30, 2014	Mar. 31, 2015	Dec. 31, 2014
Liquidity
Accumulated deficit		$ (79,343,000)	$ (72,336,000)
Stock Issued During Period, Shares, New Issues	5,758,000
Aggregate net proceeds from initial public offering	$ 41,200,000