Veritone, Inc. Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Effect of Anti-dilutive Securities (Detail) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of Anti-dilutive Securities	10,056,596	5,624,817
Redeemable Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of Anti-dilutive Securities	5,181,416	4,798,613
Bridge Loan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of Anti-dilutive Securities	147,302
Common Stock Subject to Repurchase [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of Anti-dilutive Securities	175,555	70,076
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of Anti-dilutive Securities	656,116	756,128
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of Anti-dilutive Securities	2,383,815
Acacia Note [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of Anti-dilutive Securities	1,512,392