The articles or by-laws [bylaws] may provide that within a specified period of time any action taken by the directors must be referred to the members for approval or disapproval if demanded by petition of at least ten percent (10%) of all the members or by vote of at least a majority of the directors. However, the rights of third parties which have vested between the time of such action and such referendum shall not be impaired thereby.
NMS § 53-4-21