Stockholders' Equity - Additional information (Details) - USD ($)	1 Months Ended	6 Months Ended	12 Months Ended
May 31, 2024	Jun. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
Stock-based compensation expense		$ 39,000	$ 60,000	$ 44,000
Stock based compensation for continuing operations		39,000	60,000	39,000
Stock based compensation for discontinued operations		$ 0	$ 0	$ 5,000
Granted			27,000
Grant date fair value			$ 5.64
Minimum percentage of fair value on purchase date that participants pay for shares		100.00%
Vesting period		3 years
Unrecognized compensation costs related to restricted stock units		$ 53,000	$ 92,000
Weighted average remaining term		1 year 10 months 24 days
Employee Stock
Maximum percentage of an employee's base compensation that can be contributed to the plan		10.00%	10.00%	10.00%
Purchase price of stock as a percentage of its market value		85.00%	85.00%	85.00%
Employees purchased shares		0	0	338
Shares are reserved for future employee purchases		22,945
Stock-based compensation expense		$ 3,000	$ 0	$ 7,000
Employee Stock Option
Vesting period		3 years
Term of stock options		10 years
Restricted Stock Units (RSUs) \| Employee
Granted	27,000
Grant date fair value	$ 5.64
Vesting period	3 years
Restricted stock received by non employee members, Total grant value	$ 152,000

Amount of restricted stock received by non employee members for total grant value.

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Minimum percentage of fair value on purchase date that participants pay for shares.

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Amount of stock based compensation for continuing operations.

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Amount of stock based compensation for discontinued operations

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Purchase price of common stock expressed as a percentage of its fair value.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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