Exhibit A

Agreement of Joint Filing

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned, Michael A. Davis, Janet J. Johnstone, Rudolf Steiner Foundation, Inc., Skywords Family Foundation Inc., Michael Arlen Davis Revocable Trust, Nyracai Davis Irrevocable Trust and Nettizanne J. Davis Irrevocable Trust hereby agree to the joint filing on behalf of each of them of the Schedule 13D to which this Agreement is attached as an exhibit (and any further amendment filed by any two or more of the undersigned). The undersigned acknowledge that each filer shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent it knows or has reason to believe that such information is inaccurate.

This Agreement of Joint Filing may be executed simultaneously in any number of counterparts, all of which together shall constitute one and the same instrument.

Dated: March 12, 2019

Michael A. Davis
By:	/s/ Michael A. Davis
	Michael A. Davis
Janet J. Johnstone
By:	/s/ Janet J. Johnstone
	Janet J. Johnstone
Rudolf Steiner Foundation, Inc.
By:	/s/ John Bloom
	John Bloom
Its:	Vice President, Rudolf Steiner Foundation
Skywords Family Foundation Inc.
By:	/s/ Michael A. Davis
	Michael A. Davis
Its:	Director
Michael Arlen Davis Revocable Trust
By:	/s/ Michael A. Davis
	Michael A. Davis
Its:	Trustee

Nyracai Davis Irrevocable Trust
By:	/s/ Michael A. Davis
	Michael A. Davis
Its:	Trustee
Nettizanne J. Davis Irrevocable Trust
By:	/s/ Michael A. Davis
	Michael A. Davis
Its:	Trustee