Description of Organization, Business Operations and Going Concern (Details) - USD ($)		4 Months Ended
	Jan. 29, 2026	Dec. 31, 2025
Description of Organization, Business Operations and Going Concern [Line Items]
Year of inception		September 12, 2025 (inception) through December 31, 2025
Number of units issued		3,000,000
Aggregate fair market value percentage		80.00%
Post-transaction company owns or acquires		50.00%
Maturity days		185 years
Aggregate shares percentage		15.00%
Interest to pay liquidation expenses		$ 100,000
Subsequent Event [Member] \| Space Asset Acquisition Sponsor LLC [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Number of units issued	415,000
Public Share [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Price per unit		$ 10
Initial Public Offering [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Price per unit		$ 10
Initial Public Offering [Member] \| Subsequent Event [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Number of units issued	23,000,000
Price per unit	$ 10
Over-Allotment Option [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Number of units issued		3,000,000
Over-Allotment Option [Member] \| Subsequent Event [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Number of units issued	3,000,000
Private Placement Units [Member] \| Subsequent Event [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Number of units issued	645,000
Price per unit	$ 10
Private Placement Units [Member] \| BTIG, LLC [Member] \| Subsequent Event [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Number of units issued	645,000
BTIG, LLC [Member] \| Subsequent Event [Member]
Description of Organization, Business Operations and Going Concern [Line Items]
Number of units issued	230,000