Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Apr. 01, 2022	Jun. 30, 2021
Document Type	10-K
Entity Registrant Name	Pine Island Acquisition Corp.
Document Period End Date	Dec. 31, 2021
Transition Report	true
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-39707
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-2640308
Entity Address State Or Province	FL
Entity Address, Address Line One	2455 E. Sunrise Blvd. Suite 1205
Entity Address, City or Town	Fort Lauderdale
Entity Address, Postal Zip Code	33304
City Area Code	954
Local Phone Number	526-4865
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Entity Public Float			$ 212,491,524
Entity Central Index Key	0001822835
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
ICFR Auditor Attestation Flag	false
Amendment Flag	false
Auditor Name	Marcum LLP
Auditor Location	New York, NY
Auditor Firm ID	688
Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-third of one redeemable warrant
Title of 12(b) Security	Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-third of one redeemable warrant
Trading Symbol	PIPP.U
Security Exchange Name	NYSE
Class A common stock
Title of 12(b) Security	Shares of Class A common stock, included as part of the units
Trading Symbol	PIPP
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		21,838,800
Redeemable warrants included as part of the units, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share
Title of 12(b) Security	Redeemable warrants included as part of the units
Trading Symbol	PIPP WS
Security Exchange Name	NYSE
Class B common stock
Entity Common Stock, Shares Outstanding		5,459,700