Summary of Significant Accounting Policies Restricted Cash (Details) - USD ($) $ in Thousands	Nov. 30, 2017	Feb. 28, 2017
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	$ 2,362	$ 2,323
NextRadio LLC restricted cash [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	0	123
Cash held in escrow [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	650	650
98.7FM LMA restricted cash [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	$ 1,712	$ 1,550