Note 8 - Debt (Details Textual)
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1 Months Ended |
3 Months Ended |
5 Months Ended |
6 Months Ended |
12 Months Ended |
14 Months Ended |
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Aug. 03, 2026 |
Jul. 21, 2026 |
May 05, 2026
USD ($)
$ / shares
shares
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Dec. 26, 2025
USD ($)
$ / shares
shares
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Jul. 03, 2025 |
Apr. 30, 2026
USD ($)
shares
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Sep. 30, 2025
USD ($)
shares
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Jun. 30, 2026
USD ($)
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Jun. 30, 2025
USD ($)
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Sep. 30, 2023
USD ($)
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Jun. 30, 2026
USD ($)
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Jun. 30, 2025
USD ($)
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Dec. 31, 2025
USD ($)
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May 31, 2025
USD ($)
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May 31, 2026
shares
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Mar. 31, 2026
USD ($)
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Jul. 31, 2025
USD ($)
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| Proceeds from Issuance of Debt |
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$ 9,700,000
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| Gain (Loss) on Extinguishment of Debt |
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$ (3,186,000)
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$ 0
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$ (9,284,000)
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$ 0
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| Gain (Loss) on Warrant Exchange |
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(505,000)
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0
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(505,000)
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0
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares |
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333,333
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
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2.2
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| Stockholders' Equity Note, Stock Split, Conversion Percent |
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1150.00%
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| Proceeds from Convertible Debt |
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500,000
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2,000,000
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| Reverse Stock Split [Member] |
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
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50
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| Reverse Stock Split [Member] | Subsequent Event [Member] |
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
50
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| The 2025 Senior Secured Note Holders [Member] |
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| Warrants and Rights Outstanding, Term (Year) |
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5 years
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| Placement Agent [Member] |
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| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
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$ 11.45
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares |
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163,755
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| Warrants and Rights Outstanding |
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1,080,000.00
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1,080,000.00
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| Fair Value Adjustment of Warrants |
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650,000
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280,000
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| Placement Agent [Member] | The 2025 Senior Secured Note Holders [Member] |
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| Class of Warrant or Right, Issued During Period, Fair Value |
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$ 800,000
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| New Warrants [Member] |
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| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
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$ 17.5
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| Warrants and Rights Outstanding, Term (Year) |
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5 years
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| Gain (Loss) on Warrant Exchange |
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$ (505,000)
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares |
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200,000
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| Warrants and Rights Outstanding |
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$ 894,000
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| The 2025 Senior Secured Note [Member] |
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| Debt Instrument, Face Amount |
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15,000,000
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| Proceeds from Issuance of Debt |
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13,500,000
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| Debt Instrument, Unamortized Discount |
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$ 1,500,000
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| Debt Instrument, Unamortized Discount, Percent |
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10.00%
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| Debt Issuance Costs, Net |
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$ 1,500,000
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| Debt Instrument, Periodic Payment |
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1,764,706
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| Debt Instrument, Qualified Equity Financing, Periodic Payment |
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$ 882,353
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| Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger |
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93.00%
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| Debt Instrument, Convertible, Threshold Trading Days |
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5
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| Debt Instrument, Covenant, Liquidity Amount |
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$ 4,000,000
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| Debt Instrument, Default, Interest Rate |
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15.00%
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| Debt Instrument, Repurchase Price, Percent |
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105.00%
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| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |
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$ 133.75
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| Long-Term Debt, Gross |
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$ 5,400,000
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| Change in Fair Value of Debt |
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2,740,000
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(3,190,000)
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12,000.000
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| Amortization of Debt Issuance Costs |
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2,300,000
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| Long-Term Debt, Fair Value |
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567,000
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567,000
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$ 5,400,000
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| Gain (Loss) on Extinguishment of Debt |
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(510,000)
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5,740,000
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| Gain (Loss) on Warrant Exchange |
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$ (9,280,000)
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$ (510,000)
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| The 2025 Senior Secured Note [Member] | Common Stock Warrants [Member] |
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| Class of Warrant or Right, Issued During Period (in shares) | shares |
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140,187
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| Class of Warrant or Right, Issued During Period, Fair Value |
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$ 8,100,000
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| The 2025 Senior Secured Note [Member] | Placement Agent [Member] |
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| Class of Warrant or Right, Issued During Period (in shares) | shares |
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14,019
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| The 2025 Senior Secured Note [Member] | Maximum [Member] |
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| Debt Instrument, Amount That Can Be Settled in Shares |
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$ 3,500,000
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| The 2023 Convertible Notes [Member] |
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| Debt Instrument, Face Amount |
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$ 4,200,000
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| Debt Instrument, Interest Rate, Stated Percentage |
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6.00%
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| Debt Instrument, Term (Year) |
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2 years
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| Debt Instrument, Amended Amount |
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$ 4,100,000
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| Convertible Debt Instrument, Conversion Price Equal to Lowest Price per Share, Pre-stock Split |
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50.00%
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| Convertible Debt Instrument, Conversion Price Equal to Lowest Price per Share |
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23.00%
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| Fair Value of Derivative Liabilities |
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$ 3,100,000
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| Repayments of Debt |
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100,000
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| Amortization of Debt Issuance Costs and Discounts |
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400,000
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700,000
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| The 2023 Convertible Notes [Member] | Unsecured Debt Converted to Common Shares [Member] |
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| Debt Conversion, Original Debt, Amount |
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4,100,000
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| Debt Conversion, Original Debt Interest, Amount |
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$ 500,000
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| Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |
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100,000
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| The 2024 Convertible Note [Member] |
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| Debt Instrument, Face Amount |
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$ 5,700,000
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| Debt Instrument, Interest Rate, Stated Percentage |
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6.00%
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| Debt Instrument, Term (Year) |
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6 months
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| Fair Value of Derivative Liabilities |
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$ 1,800,000
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| The 2024 Convertible Note [Member] | Unsecured Debt Converted to Common Shares [Member] |
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| Debt Conversion, Original Debt, Amount |
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$ 5,700,000
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| Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |
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6,500,000
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| Amortization of Debt Issuance Costs and Discounts |
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$ 400,000
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$ 700,000
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| Aggregated Convertible Note [Member] |
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| Debt Instrument, Face Amount |
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$ 7,000,000
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| Aggregated Convertible Note [Member] | Conversion of Aggregated Convertible Notes to Common Stock [Member] |
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| Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |
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100,000
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| Fannet Note [Member] |
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| Debt Instrument, Face Amount |
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$ 100,000
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| Debt Instrument, Interest Rate, Stated Percentage |
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2.00%
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| Debt Instrument, Fixed Contractual Return |
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$ 10,000
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| Debt Instrument, Interest Rate, Stated Percentage, Annual |
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24.00%
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| Anchor Note [Member] |
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| Debt Instrument, Face Amount |
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$ 200,000
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| Debt Instrument, Fixed Contractual Return |
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22,000
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| Fannet and Anchor Notes [Member] |
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| Debt Instrument, Amount of External Funding Received to be Due |
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$ 5,000,000
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| Quick Capital Note [Member] |
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| Debt Instrument, Face Amount |
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$ 600,000
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| Debt Instrument, Periodic Payment |
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$ 103,704
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| Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger |
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75.00%
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| Debt Instrument, Interest Rate, Stated Percentage |
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12.00%
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| Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares) | shares |
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80,128
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| Debt Instrument, Original Issue Discount |
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$ 55,556
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| Proceeds from Convertible Debt |
|
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500,000
|
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| Payments of Debt Issuance Costs |
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$ 10,000
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| Debt Instrument, Interest Rate, Default Percentage |
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20.00%
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| Debt Instrument, Payable in Event of Default |
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150.00%
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| Maximum Beneficial Ownership |
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4.99%
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| Quick Capital Note [Member] | Maximum [Member] |
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| Debt Instrument, Payable in Event of Default |
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200.00%
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