Even though her teenage son was singled out by James Dolan for chanting “Sell the Knicks’’ Wednesday night, removed from his seat by security, detained for 15 minutes and had his student ID taken, the boy’s mother said she’s “all good’’ with the Knicks owner.

“[Dolan] called me [Thursday],’’ the mother, who insisted on anonymity, told The Post. “We had a pleasant and respectful conversation. It’s all good.’’

The mother, a 20-year season-ticket holder from Manhattan, would not reveal if Dolan apologized. She said security treated her son with extreme respect and was not physical in removing him from the seat.

A “Sell The Knicks’’ chant arose at the Garden in the final minute of a blowout loss to Memphis that was lowlighted by a late brawl. Dolan reacted angrily, insisting security remove the chanting high-schooler.

Dolan has a history of going ballistic at fans for heckling him to sell the ailing team (13-36 and tied for second worst record in the league). The embattled owner has stated it’s a sore point because the suggestion means that he is “a quitter.’’

The Knicks are on the road the next two games and return to the Garden on Feb. 6 against Orlando.

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