Condensed Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,019)		$ (1,198)
Other comprehensive income (loss):
Foreign currency translation adjustments	26		25
Unrealized holding losses which arose during the period on available-for-sale securities	0	[1]	(39)	[1]
Other comprehensive income (loss)	26		(14)
Comprehensive loss	(993)		(1,212)
Comprehensive loss attributable to noncontrolling interest	(53)		(7)
Comprehensive loss attributable to Rentrak Corporation	$ (940)		$ (1,205)

[1] For the three months ended both June 30, 2014 and 2013, the amounts are net of zero deferred taxes