Acquisition of iTVX, Inc. ("iTVX") (Details) (USD $)	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended				3 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013 iTVX, Inc. AMI [Member]	Sep. 30, 2013 iTVX, Inc. AMI [Member]	Sep. 30, 2013 iTVX, Inc. AMI [Member] Minimum [Member]	Sep. 30, 2013 iTVX, Inc. AMI [Member] Maximum [Member]	Sep. 30, 2013 iTVX, Inc. AMI [Member] Fair Value, Inputs, Level 3 [Member]	Aug. 16, 2013 iTVX, Inc. AMI [Member] Fair Value, Inputs, Level 3 [Member]	Sep. 30, 2013 iTVX, Inc. AMI [Member] Fair Value, Inputs, Level 3 [Member] Selling, General and Administrative Expenses [Member]
Business Acquisition [Line Items]
Effective date of acquisition				Aug. 16, 2013
Name of acquired entity				iTVX
Description of acquired entity				a provider of branded entertainment analytics, insight and research
Estimated total consideration transferred as of acquisition date			$ 2,700,000
Cash paid for acquisition			333,000
Common stock used to pay for acquisition			375,000
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							2,700,000	1,900,000
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									800,000
Contingent consideration fixed stock price			$ 21.795
Estimated acquired intangible assets			1,100,000
Estimated aquired intangible assets, useful life					1 year	6 years
Estimated acquired goodwill			1,700,000
Estimated net tangible assets acquired			100,000
Estimated acquired deferred tax liabilities			(300,000)
Reduction in tax valuation allowance, tax benefit recorded	(300,000)	(300,000)
Amortization of intangibles	25,000	25,000
Revenue recognized since acquisition date	128,000	128,000
Net losses since acquisition date	(100,000)	(100,000)
Acquisition costs	$ 106,000	$ 182,000