The female owner and a male customer were in Diamond Fantasy on West Pleasant Avenue when two gunmen entered around 11:15 a.m. Tuesday, April 23, authorities said.
Two others outside apparently acted as lookouts, they said.
All left empty-handed, although at the moment it's unclear why.
No one was injured and no arrests had been made as of early Wednesday.
Police recovered a moped, detained and interviewed potential suspects and collected statements and video from in and around the scene.
A local resident said the moped rider "had no helmet on and had his head covered, wearing a blue face mask. He had a gun."
Paramus and Rochelle Park police assisted, Bergen County Prosecutor Mark Musella said.
The prosecutor said his Special Investigations Squad and Maywood police are investigating.
"More details will be released when possible," he said.
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ANYONE who might have seen something or has information that can help identify those responsible, meanwhile, is asked to call the prosecutor's tips line (201) 226-5532. All calls will be kept confidential.
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