Acquisition of iTVX, Inc. ("iTVX") (Details) (USD $)				1 Months Ended	3 Months Ended	6 Months Ended	1 Months Ended			3 Months Ended	6 Months Ended	1 Months Ended
	Sep. 30, 2014	Mar. 31, 2014	Mar. 31, 2013	Aug. 31, 2013 iTVX, Inc.	Sep. 30, 2014 iTVX, Inc.	Sep. 30, 2014 iTVX, Inc.	Aug. 31, 2013 iTVX, Inc. Minimum [Member]	Aug. 31, 2013 iTVX, Inc. Maximum [Member]	Aug. 31, 2013 iTVX, Inc. Fair Value, Inputs, Level 3 [Member]	Sep. 30, 2014 iTVX, Inc. Fair Value, Inputs, Level 3 [Member] Selling, General and Administrative Expenses [Member]	Sep. 30, 2014 iTVX, Inc. Fair Value, Inputs, Level 3 [Member] Selling, General and Administrative Expenses [Member]	Aug. 31, 2013 Common Stock [Member] iTVX, Inc.	Sep. 30, 2014 Accrued Compensation [Member] iTVX, Inc. Fair Value, Inputs, Level 3 [Member]
Business Acquisition [Line Items]
Name of acquired entity				iTVX
Description of acquired entity				a provider of branded entertainment analytics, insight and research
Total purchase price as of acquisition date				$ 2,800,000
Initial consideration transferred				800,000
Cash paid for acquisition				383,000
Common stock used to pay for acquisition				405,000
Common stock issued related to acquisition (shares)												17,209
Contingent consideration earnout period in years				2 years
Undiscounted amount of contingent consideration, range of outcomes, low									500,000
Undiscounted amount of contingent consideration, range of outcomes, high									7,000,000
Contingent consideration liability									2,000,000				4,800,000
Contingent consideration percentage of payment paid in cash				25.00%
Contingent consideration percentage of payment paid in stock				75.00%
Fair value remeasurement of contingent consideration liability										600,000	100,000
Contingent consideration fixed stock price (usd per share)				$ 21.795
Intangible assets acquired				900,000
Acquired intangible assets, useful life							1 year	6 years
Goodwill acquired	6,841,000	7,034,000	4,998,000	1,900,000
Net tangible assets acquired				300,000
Deferred tax liabilities acquired				300,000
Revenue recognized					400,000	800,000
Net losses					300,000	600,000
Amortization of intangibles					$ 46,000	$ 92,000