Convertible Note, Series D Preferred Stock, And Series D-1 Preferred Stock - Notes and Series D Preferred Stock (Details)					3 Months Ended	9 Months Ended
	Sep. 04, 2015 USD ($) price installment	Dec. 22, 2014 USD ($)	Nov. 19, 2014 USD ($)	Nov. 14, 2014 USD ($) d $ / shares shares	Sep. 30, 2015 USD ($) $ / shares shares	Sep. 30, 2015 USD ($) $ / shares shares	Sep. 30, 2014 USD ($)	Sep. 28, 2015 USD ($)	Jul. 22, 2015 shares	Feb. 28, 2015 shares	Dec. 31, 2014 USD ($) $ / shares	Aug. 31, 2013 shares	Jun. 30, 2013 shares	Jun. 17, 2013 shares
Debt Instrument [Line Items]
Common stock, par value (in dollars per share) | $ / shares					$ 0.0001	$ 0.0001					$ 0.0001
Changes in restricted cash						$ 9,250,000	$ 0
Make-whole dividend liability					$ 849,560	849,560					$ 849,560
Investor payable, current, net					$ 6,235,871	6,235,871					0
Loss on extinguishment of debt and related embedded derivative						$ 11,600,000
Common Stock [Member]
Debt Instrument [Line Items]
Number of securities called by warrants | shares												218,750	262,500	43,750
Common stock, par value (in dollars per share) | $ / shares					$ 0.0001	$ 0.0001
Common Stock [Member] | Warrants and Rights Subject to Mandatory Redemption [Member]
Debt Instrument [Line Items]
Issuance of common stock (in shares) | shares					1,500,000
Series D Preferred Stock [Member]
Debt Instrument [Line Items]
Preferred stock, shares outstanding (in shares) | shares					0	0
Convertible Debt [Member]
Debt Instrument [Line Items]
Aggregate principal amount of Notes outstanding	$ 1,500,000							$ 500,000
Private Placement [Member]
Debt Instrument [Line Items]
Securities purchase agreement, consideration received, cash			$ 4,500,000
Securities purchase agreement, amount held in restricted control accounts			$ 30,500,000
Securities purchase agreement, consideration received, cash received from restricted control accounts		$ 2,500,000
Securities purchase agreement, covenant term, maximum payout per 90 days				$ 6,000,000
Conversion price | $ / shares				$ 2.25
Conditional redemption period				30 days
Redemption price, percentage				120.00%
Required notice to holder of redemption election				90 days
Debt instrument, convertible, amortization acceleration election maximum threshold ratio				5
Amortization payment, deferred election, amount						$ 1,707,317
Amortization payment, deferred election, amount interest expense added to the principal balance						$ 351,899
Private Placement [Member] | Warrants and Rights Subject to Mandatory Redemption [Member]
Debt Instrument [Line Items]
Number of securities called by warrants | shares				7,777,778					8,300,000	541,126
Private Placement [Member] | Convertible Notes And Series D Preferred Stock, Alternate Conversion [Member]
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio				0.85
Debt instrument, convertible, threshold lowest trading days | d				3
Debt instrument, convertible, threshold consecutive trading days				10 days
Debt instrument, convertible, numerator for calculation of conversion price				3
Private Placement [Member] | Convertible Notes And Series D Preferred Stock, Installment Conversion [Member]
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio				0.85
Debt instrument, convertible, threshold lowest trading days | d				5
Debt instrument, convertible, threshold consecutive trading days				20 days
Debt instrument, convertible, numerator for calculation of conversion price				5
Private Placement [Member] | Convertible Notes And Series D Preferred Stock, Default [Member]
Debt Instrument [Line Items]
Debt instrument, convertible, redemption threshold, percent				125.00%
Private Placement [Member] | Common Stock [Member]
Debt Instrument [Line Items]
Conversion of stock, new issuance | shares						8,318,690
Stock issued during period, shares, issued for interest expense | shares						3,420,461
Private Placement [Member] | Series D Preferred Stock [Member]
Debt Instrument [Line Items]
Proceeds from issuance of stock				$ 3,000,000
Issuance of common stock (in shares) | shares				3,000
Stock dividends | shares						11,241
Private Placement [Member] | Convertible Debt [Member]
Debt Instrument [Line Items]
Issuance of common stock (in shares) | shares						21,424,686
Proceeds from issuance of convertible debt				$ 32,000,000
Debt instrument term				42 months
Debt conversion, original debt, amount						$ 2,305,000
Installment payments for Notes						3,703,293
Amortization payment, accelerated election, amount						5,145,375
Stated interest rate				7.00%
Debt instrument, interest rate upon occurrence of events				15.00%
Interest expense						$ 984,632
Aggregate principal amount of Notes outstanding	21,200,000
Aggregate payment to retire the Notes	25,100,000
Payments for repurchase of Notes	18,800,000
Investor payable, gross	$ 6,300,000
Number of payments | installment	2
Investor payable due in first installment	$ 2,400,000
Investor payable due in second installment	$ 3,900,000
Private Placement [Member] | Convertible Debt [Member] | Convertible Notes And Series D Preferred Stock, Installment Conversion [Member]
Debt Instrument [Line Items]
Issuance of common stock (in shares) | shares						12,651,059
Private Placement [Member] | Convertible Debt [Member] | Convertible Notes And Series D Preferred Stock, Default [Member]
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio				0.85
Debt instrument, convertible, threshold lowest trading days | d				3
Debt instrument, convertible, threshold consecutive trading days				10 days
Debt instrument, convertible, numerator for calculation of conversion price				3
Private Placement [Member] | Convertible Debt [Member] | Convertible Notes, Cancellation And Waiver Agreement [Member]
Debt Instrument [Line Items]
Debt instrument, convertible, conversion ratio	0.85
Debt instrument, convertible, number of prices for conversion price calculation | price	3
Debt instrument, convertible, threshold consecutive trading days	60 days
Debt instrument, convertible, numerator for calculation of conversion price	3
Private Placement [Member] | Convertible Preferred Stock Subject to Mandatory Redemption [Member]
Debt Instrument [Line Items]
Proceeds from issuance of stock				$ 3,000,000
Issuance of common stock (in shares) | shares				3,000
Preferred stock, dividend rate, percentage				7.00%
Percentage on occurrence of events				15.00%
Preferred dividends, cash						$ 3,572
Private Placement [Member] | Convertible Preferred Stock Subject to Mandatory Redemption [Member] | Series D Preferred Stock [Member]
Debt Instrument [Line Items]
Issuance of common stock (in shares) | shares						1,465,972
Debt instrument, convertible, trading days prior to the installment date for amortization payments | d				20
Preferred stock liquidation value, installment payments						$ 565,341
Embedded Derivative Financial Instruments [Member] | Private Placement [Member] | Convertible Debt [Member]
Debt Instrument [Line Items]
Make-whole dividend liability											17,400,000
Embedded Derivative Financial Instruments [Member] | Private Placement [Member] | Convertible Preferred Stock Subject to Mandatory Redemption [Member] | Series D Preferred Stock [Member]
Debt Instrument [Line Items]
Make-whole dividend liability					$ 0	$ 0					$ 400,000