What are you talking about? Ordinarily, quarterly results are not audited and are not required to be audited. Annual results are audited. Why would you expect that to be different for AIRT? It would also be a waste of money. What leads you to think they would try to cook their books during the year and then get audited at year end???
Sorry but you are absolutely wrong. Quarterly results don't normally get audited. Go ahead and check the 10Q of your favorite company and see. I will do you a favor and assume you are ignorant rather than deliberately trying to spread some doubt on the credibility of management of this well run company.