XBRL FILINGS

April 2, 2018 10-K Annual report [Sections 13 and 15(d)]                      December 31, 2017
November 13, 2017 10-Q Quarterly report [Sections 13 or 15(d)]                      September 30, 2017
August 18, 2017 10-Q Quarterly report [Sections 13 or 15(d)]                      June 30, 2017
May 12, 2017 10-Q Quarterly report [Sections 13 or 15(d)]                      March 31, 2017
March 31, 2017 10-K Annual report [Sections 13 and 15(d)]                       Dec. 31, 2016
February 27, 2017 10-K/A [Amend] Annual report [Sections 13 and 15(d)]        Dec. 31, 2014
February 24, 2017 10-Q/A [Amend] Quarterly report [Sections 13 or 15(d)]       Sept. 30, 2016  
Dec. 12, 2016 10-Q Quarterly report [Sections 13 or 15(d)]                      Sept. 30, 2016
Dec. 12, 2016 10-Q Quarterly report [Sections 13 or 15(d)]                      June 30, 2016
Dec. 12, 2016 10-Q Quarterly report [Sections 13 or 15(d)]                      March 31, 2016
Dec. 12, 2016 10-K Annual report [Sections 13 and 15(d)]                       Dec. 31, 2015