How to select rows for which column has empty array ?

yelloday_development=# select id,workplace_ids,team_ids  from reporting_groups ;                                                                                                                                                                                     

 id | workplace_ids | team_ids 

----+---------------+----------

  2 | {}            | {}

  3 | {}            | {}

  1 | {}            | {}

  4 | {1}           | {1}

  5 | {2}           | {2,3,4}

(5 rows)

yelloday_development=# select id from reporting_groups where 2 = ANY (team_ids)

yelloday_development-# ;

 id 

----

  5

(1 row)

How would I select rows which has empty array for the field "team_ids" ?