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Business Description, Basis of Presentation and Significant Accounting Policies (Details Textual) - USD ($) |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |  |
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Jun. 24, 2025 | Jun. 20, 2025 | Jun. 04, 2025 | May 30, 2025 | May 21, 2025 | Feb. 28, 2025 | Jun. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 10, 2025 | Jun. 09, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of dividends |  |  |  |  |  |  |  | $ 0 | $ 14,490,000 |  |  |  |  |
Cash and cash equivalents including restricted cash and cash equivalents |  |  |  |  |  |  | $ 2,810,000 | 2,810,000 | 2,450,000 |  |  |  | $ 1,417,000 | $ 17,835,000
Working capital |  |  |  |  |  |  | $ 9,400,000 | 9,400,000 |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  | (2,568,000) | (2,722,000) |  |  |  |  |
decrease of cash used in operating activities |  |  |  |  |  |  |  |  | (2,700,000) |  |  |  |  |
Proceeds from Issuance of Private Placement |  |  |  |  |  | $ 1,000,000 |  | $ 1,000,000 | $ 0 |  |  |  |  |
Stockholders' equity, Reverse stock split | 1-for-15 reverse stock split |  | 1-for-15 reverse stock split ratio | reverse stock split at a ratio between 1-for-10 and 1-for-15, with the exact ratio to be determined by the Board of Directors | 1-for-15 reverse stock split |  |  |  |  |  |  |  |  |
Common stock, par value (in dollars per share) |  |  |  |  | $ 0.001 |  | $ 0.001 | $ 0.001 |  |  |  |  | $ 0.001 |
Common stock issued and outstanding, Number of shares converted into single share resulting from reverse stock split |  |  |  | 15 |  |  |  |  |  |  |  |  |  |
Number of fractional shares issued upon reverse stock split for common stock issued and outstanding |  |  |  | 0 |  |  |  |  |  |  |  |  |  |
Common stock, shares issued |  |  |  |  |  |  | 1,734,249 | 1,734,249 |  |  |  |  | 1,599,534 |
Common stock, shares outstanding |  |  |  |  |  |  | 1,734,249 | 1,734,249 |  |  |  |  | 1,599,534 |
Restricted cash |  |  |  |  |  |  | $ 1,678,000 | $ 1,678,000 |  |  |  |  | $ 0 |
Payments for severance, legal fees, compliance fees and other expenses |  |  |  |  |  |  | $ 1,322,000 |  |  |  |  |  |  |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued |  |  |  |  |  |  | 1,700,000 | 1,700,000 |  | 1,700,000 |  |  |  |
Common stock, shares outstanding |  |  |  |  |  |  | 1,700,000 | 1,700,000 |  | 1,700,000 |  |  |  |
Before Adjustment of Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued |  |  |  |  |  |  |  |  |  |  | 26,000,000 |  |  |
Common stock, shares outstanding |  |  |  |  |  |  |  |  |  |  | 26,000,000 |  |  |
Employee Severance | Reduction in force |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance and related costs estimated |  | $ 1,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Class A Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period for completion of sale of current assets and operations since issuance of preferred stock as special stock dividend for each common stock issued | 180 days | 180 days |  |  |  |  |  |  |  |  |  |  |  |
Convertible Notes Payable | First Finance Ltd. | Note Purchase Agreement | Private Placement |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, principal amount |  | $ 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |

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