Stockholders' Deficit - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |
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1 Months Ended |
3 Months Ended |
6 Months Ended |
9 Months Ended |
12 Months Ended |
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Apr. 30, 2026 |
Mar. 12, 2026 |
Feb. 26, 2026 |
Feb. 20, 2026 |
Dec. 12, 2025 |
Sep. 25, 2025 |
Aug. 15, 2025 |
Jan. 09, 2024 |
May 24, 2023 |
Jun. 30, 2026 |
Sep. 30, 2023 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Sep. 30, 2023 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
May 31, 2026 |
Aug. 20, 2025 |
Jul. 10, 2024 |
| Offering price per underlying share |
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| Common stock, shares outstanding |
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4,036,398
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4,036,398
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4,036,398
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435,432
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321,252
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285,720
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| Preferred Stock, shares authorized |
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5,000,000
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5,000,000
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5,000,000
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5,000,000
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5,000,000
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5,000,000
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| Preferred stock, par value |
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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| Preferred stock, shares issued |
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0
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0
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0
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0
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0
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0
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| Common stock, shares issued |
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4,036,398
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4,036,398
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4,036,398
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435,432
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321,252
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285,720
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| Exercise Price |
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$ 0.44
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$ 0.44
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$ 0.44
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$ 0.88
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| Common stock, shares authorized |
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100,000,000
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100,000,000
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100,000,000
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500,000,000
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500,000,000
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500,000,000
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| Common stock, par value |
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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$ 0.01
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| Term (years) |
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5 years 6 months
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| Sale of Stock, Consideration Received Per Transaction |
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$ 9,500
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| Deferred Offering Costs |
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$ 300
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$ 300
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| Net cash proceeds |
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1,700
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| Loss on issuance of common stock |
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$ 200
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$ 0
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$ 0
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$ 231
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| Sale of stock, authorized amount of common stock |
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$ 20,000
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| Net proceeds from common stock shares issued at public offering |
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0
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$ 0
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3,150
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| Offering expenses |
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$ 100
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$ 7,600
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$ 9
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$ 262
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| Aggregate principal amount of initial loan advance |
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$ 1,000
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| Pre-Funded Warrants |
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371,057
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185,527
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7,434,321
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7,434,321
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7,434,321
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3,525,094
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93,266
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36,766
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| Outstanding debt |
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$ 2,000
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| Accrued interest |
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$ 1,000
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| Common stock exercise price |
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$ 0.11
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| Purchase price per share |
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$ 5.39
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| Proceeds from issuance initial public offering |
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$ 58,300
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$ 60,295
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$ 0
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| Second Quarter 2026 Equity Activity [Member] |
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| Offering price per underlying share |
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| Exercise Price |
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$ 0.01
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$ 0.01
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$ 0.01
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| Common stock, par value |
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$ 0.01
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$ 0.01
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$ 0.01
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| Pre-Funded Warrants |
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3,025,000
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3,025,000
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3,025,000
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| Common stock offered share |
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2,975,000
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2,975,000
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2,975,000
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| Common stock public offering price per share |
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$ 11
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$ 11
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$ 11
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| Offering Price Per Underlying Share |
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$ 10.99
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$ 10.99
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$ 10.99
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| Proceeds from issuance initial public offering |
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$ 58,300
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| Second Quarter 2026 Equity Activity [Member] | Coastlands And Domicilium [Member] |
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| Offering price per underlying share |
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| Common stock, shares issued |
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113,636
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| Exercise Price |
$ 0.11
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| Pre-Funded Warrants |
113,636
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227,272
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| Common stock upon conversion of warrant exercise shares |
227,272
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| Proceeds from warrant exercises |
$ 100
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| Share-Based Payment Arrangement, Tranche Three [Member] | First Quarter 2026 Equity Activity [Member] |
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| Offering price per underlying share |
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| Accrued interest |
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$ 1,000
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| Pre-Funded Warrants [Member] |
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| Offering price per underlying share |
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| Exercise Price |
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$ 0.11
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| Common stock, par value |
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$ 5.39
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| Sale of Stock, Consideration Received Per Transaction |
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$ 2,000
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| Black-Scholes model [Member] |
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| Offering price per underlying share |
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| Exercise Price |
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$ 5.4
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| Risk-Free Rate |
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4.70%
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| Issuance of 2023 Common Warrants and Placement Agent Warrants |
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$ 1,900
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| Volatility |
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139.00%
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139.00%
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| Term (years) |
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3 years
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| September 2023 Purchase Agreement [Member] |
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| Offering price per underlying share |
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| Common stock, shares issued |
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27,780
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27,780
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| Exercise Price |
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$ 0.011
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$ 0.011
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| Total Gross Proceeds |
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$ 2,000
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| Sales Agreement [Member] |
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| Offering price per underlying share |
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| Common stock public offering price |
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$ 64.57
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| Net proceeds from common stock shares issued at public offering |
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$ 3,500
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| Offering expenses |
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$ 300
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| Domicilium Securities Purchase Agreement [Member] |
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| Offering price per underlying share |
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| Common stock, shares issued |
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14,285
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5,000,000
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| Amount allocated to Coastlands |
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$ 5,000
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| Number of common stock in warrant |
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42,864
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| Exercise Price |
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$ 0.11
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| Common stock, par value |
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$ 0.01
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| Issuance of 2023 Common Warrants and Placement Agent Warrants |
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$ 700
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| Domicilium Securities Purchase Agreement [Member] | January 2024 Pre-Funded Warrant [Member] |
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| Offering price per underlying share |
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| Exercise Price |
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$ 12.98
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| Domicilium Securities Purchase Agreement [Member] | Pre-Funded Warrants [Member] |
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| Offering price per underlying share |
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| Number of common stock in warrant |
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13,636
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| Domicilium Securities Purchase Agreement [Member] | Black-Scholes model [Member] |
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| Offering price per underlying share |
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| Exercise Price |
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$ 1.14
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| Coastlands Securities Purchase Agreement |
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| Offering price per underlying share |
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| Common stock, shares issued |
|
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|
|
|
|
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|
|
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|
20,000,000
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20,000,000
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| Amount allocated to Coastlands |
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|
15,000
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$ 15,000
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| Purchased securities |
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|
9,500
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|
$ 1,000
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$ 5,000
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| Securities for cash consideration |
|
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|
20,000
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| Exercise Price |
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$ 0.11
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$ 0.01
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| Common stock public offering price |
|
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|
$ 5.39
|
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|
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| Net proceeds from common stock shares issued at public offering |
|
|
|
|
|
|
$ 1,000
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|
|
|
|
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| Purchase of pre-funded warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
185,528
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|
|
| Coastlands Securities Purchase Agreement | First Quarter 2026 Equity Activity [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
$ 0.11
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Pre-Funded Warrants |
|
|
927,643
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding debt |
|
|
$ 5,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Purchase price per share |
|
|
$ 5.39
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| September 2023 Warrants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
|
|
|
|
|
|
|
|
56.43
|
|
|
|
|
$ 56.43
|
|
|
|
|
|
|
| September 2023 Placement Agent Warrants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
|
|
|
|
|
|
|
|
$ 72.26
|
|
|
|
|
$ 72.26
|
|
|
|
|
|
|
| Common stock, shares authorized |
|
|
|
|
|
|
|
|
|
|
2,075
|
|
|
|
|
2,075
|
|
|
|
|
|
|
| September 2023 Placement Agent Warrants [Member] | Black-Scholes model [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 5.4
|
|
|
|
| Risk-Free Rate |
|
|
|
|
|
|
|
|
|
|
4.70%
|
|
|
|
|
|
|
|
|
|
|
|
| Volatility |
|
|
|
|
|
|
|
|
|
|
139.00%
|
|
|
|
|
139.00%
|
|
|
|
|
|
|
| Term (years) |
|
|
|
|
|
|
|
|
|
|
3 years
|
|
|
|
|
|
|
|
|
|
|
|
| ATM Program [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sale of common stock through ATM, net of issuance costs, shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
54,222
|
|
|
|
| Initial Coastlands Closing |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Proceeds received |
|
|
|
$ 15,000
|
$ 10,000
|
$ 5,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Coastlands First Tranche Closing |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
|
|
|
$ 0.11
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock public offering price |
|
|
|
|
|
$ 5.39
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Net proceeds from common stock shares issued at public offering |
|
|
|
|
|
$ 4,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Purchase of pre-funded warrants |
|
|
|
|
|
742,115
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Loan conversion |
|
|
|
|
|
$ 8,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate principal amount of initial loan advance |
|
|
|
|
|
$ 9,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Pre-Funded Warrants |
|
|
|
|
|
1,576,542
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Conversion Price |
|
|
|
|
|
$ 5.39
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding debt |
|
|
|
|
|
$ 1,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Accrued interest |
|
|
|
|
|
1,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unpaid interest |
|
|
|
|
|
$ 1,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Coastlands Second Tranche Closing |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
|
|
$ 0.11
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock public offering price |
|
|
|
|
$ 5.39
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Net proceeds from common stock shares issued at public offering |
|
|
|
|
$ 5,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Purchase of pre-funded warrants |
|
|
|
|
927,643
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock, shares authorized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
100,000,000
|
|
|
| Fair value inputs probability of outcome |
|
|
|
|
|
|
|
95.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unpaid interest |
|
|
$ 100
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 100
|
|
|
|
|
|
| Maximum [Member] | September 2023 Purchase Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of common stock in warrant |
|
|
|
|
|
|
|
|
|
|
6,818
|
|
|
|
|
6,818
|
|
|
|
|
|
|
| Maximum [Member] | Sales Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sale of stock, authorized amount of common stock |
|
|
|
|
|
|
|
|
$ 50,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate offering price |
|
|
|
|
|
|
|
|
$ 6,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Percentage of sales agents commission |
|
|
|
|
|
|
|
|
3.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum [Member] | Domicilium Securities Purchase Agreement [Member] | Black-Scholes model [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Risk-Free Rate |
|
|
|
|
|
|
|
4.20%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Volatility |
|
|
|
|
|
|
|
152.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Term (years) |
|
|
|
|
|
|
|
5 years 3 days
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum [Member] | September 2023 Warrants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Number of common stock in warrant |
|
|
|
|
|
|
|
|
|
|
34,599
|
|
|
|
|
34,599
|
|
|
|
|
|
|
| Minimum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Common stock, shares authorized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
500,000,000
|
|
|
| Fair value inputs probability of outcome |
|
|
|
|
|
|
|
5.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Minimum [Member] | Domicilium Securities Purchase Agreement [Member] | Black-Scholes model [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Risk-Free Rate |
|
|
|
|
|
|
|
4.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Volatility |
|
|
|
|
|
|
|
134.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Term (years) |
|
|
|
|
|
|
|
2 years 8 months 23 days
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Domicilium [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Percentage ownership |
|
|
|
|
|
|
|
|
|
19.99%
|
|
19.99%
|
|
19.99%
|
|
|
|
|
|
|
|
|
| Domicilium [Member] | Second Quarter 2026 Equity Activity [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Percentage ownership |
19.99%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
|
|
|
|
|
|
|
$ 0.11
|
|
$ 0.11
|
|
$ 0.11
|
|
|
|
|
|
|
|
|
| Pre-Funded Warrants |
|
|
|
|
|
|
|
|
|
600,000
|
|
600,000
|
|
600,000
|
|
|
|
|
|
|
|
|
| Proceeds from warrant exercises |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 100
|
|
|
|
|
|
|
|
|
| Domicilium [Member] | Domicilium Securities Purchase Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Percentage ownership |
|
|
|
|
|
|
|
9.90%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Domicilium [Member] | Domicilium Securities Purchase Agreement [Member] | January 2024 Pre-Funded Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Percentage ownership |
|
|
|
|
|
|
|
4.90%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hercules Term Loan Agreement |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate principal amount of initial loan advance |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 3,200
|
| Hercules Term Loan Agreement | Share-Based Payment Arrangement, Tranche Three [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Short Term Debt, Outstanding Amount |
|
|
$ 1,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hercules Term Loan Agreement | Share-Based Payment Arrangement, Tranche Three [Member] | First Quarter 2026 Equity Activity [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offering price per underlying share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise Price |
|
|
$ 0.11
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Pre-Funded Warrants |
|
|
185,527
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Conversion Price |
|
|
$ 5.39
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hercules Term Loan Agreement | Maximum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
| Offering price per underlying share |
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| Unpaid interest |
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$ 100
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