Warrants (Narrative) (Details) (USD $)	3 Months Ended		17 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Aug. 21, 2013
Class of Warrant or Right [Line Items]
Proceeds from warrant exercises	$ 3,233,000	$ 0	$ 9,796,900
A Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants issued				2,200,000
Number of common stock to be purchased by warrants				2,200,000
Exercise date				Aug. 16, 2018
Shares covered by each warrant				1
Exercise price				$ 2.75
A Warrants [Member] | Underwriters [Member]
Class of Warrant or Right [Line Items]
Warrants issued				330,000
Number of common stock to be purchased by warrants				330,000
B Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants issued				2,200,000
Number of common stock to be purchased by warrants				1,100,000
Exercise date				May 16, 2014
Shares covered by each warrant				2
Exercise price				$ 2.50
B Warrants [Member] | Underwriters [Member]
Class of Warrant or Right [Line Items]
Warrants issued				330,000
Number of common stock to be purchased by warrants				165,000
Representative Warrants [Member] | Underwriters [Member]
Class of Warrant or Right [Line Items]
Warrants issued				154,000
Number of common stock to be purchased by warrants				154,000
Exercise price				$ 3.125
Representative Warrants [Member] | Underwriters [Member] | Minimum [Member]
Class of Warrant or Right [Line Items]
Exercise date				May 16, 2014
Representative Warrants [Member] | Underwriters [Member] | Maximum [Member]
Class of Warrant or Right [Line Items]
Exercise date				Aug. 16, 2016