Cover |
Jan. 15, 2026 |
|---|---|
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 15, 2026 |
| Entity File Number | 000-16335 |
| Entity Registrant Name | RIDGEFIELD ACQUISITION CORP. |
| Entity Central Index Key | 0000812152 |
| Entity Tax Identification Number | 84-0922701 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 732 S 6th St. |
| Entity Address, Address Line Two | Suite R |
| Entity Address, City or Town | Las Vegas |
| Entity Address, State or Province | NV |
| Entity Address, Postal Zip Code | 89101 |
| City Area Code | 510 |
| Local Phone Number | 244-0424 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
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- Definition For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD. No definition available.
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- Definition Address Line 1 such as Attn, Building Name, Street Name No definition available.
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- Definition Address Line 2 such as Street or Suite number No definition available.
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- Definition Two-character EDGAR code representing the state or country of incorporation. No definition available.
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