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Shareholders' Equity Equity Issuances (Details) - USD ($) | 1 Months Ended | 3 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 30, 2015 | Mar. 31, 2016 | Mar. 31, 2015 | Mar. 10, 2016 | Feb. 29, 2016 | Dec. 31, 2015 | May. 01, 2015 | Jun. 30, 2014
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Common Stock Warrants, Shares |  | 4,605,473 |  | 1,400,000 |  | 3,214,033 |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  | $ 1.00 |  |  |  |
Share Price |  |  |  | $ 0.705 | $ 1.00 |  |  |
Proceeds from Issuance of Warrants |  | $ 1,000,000 |  |  |  |  |  |
Common Stock, Shares, Issued |  | 59,123,260 |  |  |  | 56,733,012 |  |
Net proceeds from issuance of common stock |  | $ 1,096,208 | $ 7,411,828 |  |  |  |  |
Aspire Capital Purchase Agreement [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Term of agreement in months | 24 months |  |  |  |  |  |  |
Purchase Commitment, Remaining Minimum Amount Committed | $ 30,000,000 |  |  |  |  |  |  |
Purchase Commitment, Maximum Amount Committed, Shares | 11,019,276 |  |  |  |  |  |  |
Stock Issued During Period, Shares, Other | 842,696 | 50,000 |  |  |  |  |  |
Discount Applied To Weighted Average Price | 5.00% |  |  |  |  |  |  |
Net proceeds from issuance of common stock |  | $ 0 |  |  |  |  |  |
Shares, Issued |  | 1,100,000 |  |  |  |  |  |
Common Stock, Value, Issued |  | $ 300,000 |  |  |  |  |  |
March 2014 Purchase Agreement [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Other |  | 5,100,000 |  |  |  |  |  |
Net proceeds from issuance of common stock |  | $ 20,300,000 |  |  |  |  |  |
Aspire Capital Purchase Agreement [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Common Stock, Shares, Issued |  | 364,837 |  |  |  |  |  | 150,000
Purchase Commitment, Remaining Minimum Amount Committed |  |  |  |  |  |  | $ 30,000,000 | $ 30,000,000

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