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Common Stock	9 Months Ended
	Jun. 30, 2018
Common Stock	10. Common Stock The Company previously issued warrants to third parties, which had a five-year term to be converted to common stock at an exercise price of $0.004 per share. Outstanding warrants to purchase shares of common stock are held by persons who are not U.S. citizens. The warrants are not exercisable due to restrictions imposed by federal law requiring that no more than 24.9% of our stock be voted, directly or indirectly, or controlled by persons who are not U.S. citizens. The warrants can be converted to common stock upon warrant holders demonstrating U.S. citizenship. During June 2018, the Company extended the term of outstanding warrants set to expire by five years (through fiscal year 2023). Any warrants that were not extended were forfeited. On June 28, 2018, the Company agreed with GE Capital Aviation Services LLC (“GE Capital”) to terminate a warrant to purchase 250,000 shares of common stock held by GE Capital. Our shares of common stock are listed on the NASDAQ Global Market under the symbol “MESA” effective August 10, 2018.

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- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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