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Loans Payable (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 23, 2015 | May. 20, 2015 | Jun. 23, 2015 | May. 20, 2015 | Feb. 18, 2015 | Jun. 30, 2015 | Jun. 30, 2015 | Jun. 30, 2014 | May. 05, 2015 | Dec. 31, 2014
Debt Conversion [Line Items] |  |  |  |  |  |  |  |  |  |
Convertible promissory note, principal amount | $ 400,000 | $ 465,000 | $ 400,000 | $ 465,000 |  | $ 585,000 | $ 585,000 |  |  |
Terms of warrant |  |  | 5 years | 5 years |  |  |  |  |  |
Common stock, shares issued | 640,000 | 762,295 | 640,000 | 762,295 |  | 46,218,000 | 46,218,000 |  | 938,357 | 46,218,000
Price per share | $ 0.30 | $ 0.31 | $ 0.30 | $ 0.31 |  |  |  |  |  |
Percentage of convertible promissory note bears interest | 14.00% | 12.00% | 14.00% | 12.00% |  |  |  |  |  |
Maturity date |  |  | Sep. 23, 2016 | May 20, 2016 |  |  |  |  |  |
Convertible promissory note | $ 585,000 |  | $ 585,000 |  |  |  |  |  |  |
Outstanding principal and accrued and unpaid interest at a conversion rate | $ 0.28 |  | $ 0.28 |  |  |  |  |  |  |
Warrants, exercise price |  |  | $ 0.15 |  |  |  |  |  |  |
Change in fair value of warrant liability |  |  |  |  |  |  | $ (812,000) |  |  |
Interest expense |  |  |  |  |  | $ 111,000 | $ 162,000 |  |  |
Effective interest rate of convertible notes payable |  |  |  |  |  |  | 54.63% |  |  |
Fair value expected life |  |  |  |  |  |  | 4 years |  |  |
Fair value risk-free rate |  |  |  |  |  |  | 1.26% |  |  |
Expected price volatility |  |  |  |  |  |  | 100.00% |  |  |
Share price |  |  |  |  |  | $ 0.38 | $ 0.38 |  |  |
Fair value exercise price |  |  |  |  |  | $ 0.36 | $ 0.36 |  |  |
Debt Issuance Cost |  |  |  |  |  |  | $ 34 |  |  |
Unamortized beneficial conversion feature |  |  |  |  |  |  |  |  |  |
Warrant liability |  |  |  |  |  | $ 1,340,000 | $ 1,340,000 |  |  | $ 1,910,000
Preferred stock, interest rate |  |  |  | 6.00% |  |  |  |  |  |
Mill City Ventures III, Ltd. [Member] |  |  |  |  |  |  |  |  |  |
Debt Conversion [Line Items] |  |  |  |  |  |  |  |  |  |
Convertible promissory note, principal amount |  |  |  |  | $ 1,000,000 |  |  |  |  |
Terms of warrant |  |  |  |  | 5 years |  |  |  |  |
Common stock, shares issued |  |  |  |  | 1,515,152 |  |  |  |  |
Price per share |  |  |  |  | $ 0.38 |  |  |  |  |
Percentage of convertible promissory note bears interest |  |  |  |  | 12.00% |  |  |  |  |
Maturity date |  |  |  |  | Aug. 18, 2016 |  |  |  |  |
Convertible promissory note |  |  |  |  | $ 3,500,000 |  |  |  |  |
Outstanding principal and accrued and unpaid interest at a conversion rate |  |  |  |  | $ 0.33 |  |  |  |  |
Warrants, exercise price |  |  |  |  | $ 0.25 |  |  |  |  |
Change in fair value of warrant liability |  |  |  |  | $ 272 |  |  |  |  |
Amortization of beneficial conversion feature |  |  |  |  | $ 363 |  | $ 508,000 |  |  |
Promissory Note [Member] |  |  |  |  |  |  |  |  |  |
Debt Conversion [Line Items] |  |  |  |  |  |  |  |  |  |
Convertible promissory note, principal amount |  | $ 465,000 |  | $ 465,000 |  |  |  |  |  |
Price per share |  | $ 0.31 |  | $ 0.31 |  | $ 0.30 | $ 0.30 |  |  |
Convertible promissory note | $ 465,000 |  | $ 465,000 |  |  |  |  |  |  |
Warrants, exercise price |  |  | $ 0.22 |  |  |  | $ 0.30 |  |  |
Change in fair value of warrant liability |  | $ 114,000 |  |  |  |  | $ 77,000 |  |  |
Amortization of beneficial conversion feature |  |  |  |  |  |  | 0 |  |  |
Interest expense |  |  |  |  |  | $ 22,000 | $ 22,000 |  |  |
Effective interest rate of convertible notes payable | 59.36% | 25.00% |  |  |  |  |  |  |  |
Fair value expected life |  | 4 years |  |  |  |  |  |  |  |
Fair value risk-free rate |  | 1.39% |  |  |  |  |  |  |  |
Expected price volatility |  | 108.87% |  |  |  |  |  |  |  |
Share price |  | $ 0.22 |  | 0.22 |  |  |  |  |  |
Fair value exercise price |  | $ 0.15 |  | $ 0.15 |  |  |  |  |  |
Unamortized beneficial conversion feature |  | $ 39,000 |  | $ 39,000 |  |  |  |  |  |
Warrants to purchase common stock |  | 762,295 | 935,210 |  |  |  |  |  |  |
Warrant liability |  | $ 169,000 |  | $ 169,000 |  |  |  |  |  |
Debt discount |  | $ 205,000 |  |  |  |  |  |  |  |
Promissory note interest rate description |  |  |  |  |  |  | The subordinated secured promissory note had an annual interest rate of 12%, 6% in cash and 6% added to the principal, and matured on May 20, 2016, see Note 11. |  |  |
Number of warrants |  | 935,210 |  | 935,210 |  |  |  |  |  |
Promissory Note One [Member] |  |  |  |  |  |  |  |  |  |
Debt Conversion [Line Items] |  |  |  |  |  |  |  |  |  |
Convertible promissory note, principal amount | $ 400,000 |  | $ 400,000 |  |  |  |  |  |  |
Price per share | $ 0.28 |  | $ 0.28 |  |  |  |  |  |  |
Percentage of convertible promissory note bears interest | 14.00% |  | 14.00% |  |  |  |  |  |  |
Maturity date | Sep. 23, 2016 |  |  |  |  |  |  |  |  |
Convertible promissory note | $ 585,000 |  | $ 585,000 |  |  |  |  |  |  |
Outstanding principal and accrued and unpaid interest at a conversion rate | $ 12 |  | $ 12 |  |  |  |  |  |  |
Warrants, exercise price | $ 0.30 |  |  |  |  |  |  |  |  |
Change in fair value of warrant liability | $ 77,000 |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  | $ 2,000 | $ 2,000 |  |  |
Effective interest rate of convertible notes payable | 9.99% |  | 30.85% |  |  |  |  |  |  |
Fair value expected life | 4 years |  |  |  |  |  |  |  |  |
Fair value risk-free rate | 1.39% |  |  |  |  |  |  |  |  |
Expected price volatility | 108.87% |  |  |  |  |  |  |  |  |
Warrants to purchase common stock | 640,000 |  |  |  |  |  |  |  |  |

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