Veritone, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Deficit) - Additional Information (Detail)

Stockholders' Equity (Deficit) - Additional Information (Detail) $ / shares in Units, $ in Thousands					1 Months Ended						12 Months Ended
	Jun. 25, 2018 USD ($) $ / shares shares	Nov. 21, 2017 USD ($) $ / shares shares	May 17, 2017 USD ($) $ / shares shares	Apr. 20, 2017	Jun. 30, 2018 USD ($) shares	Apr. 30, 2018 shares	Apr. 30, 2017 shares	Mar. 31, 2017 shares	Jan. 31, 2017 shares	Jul. 31, 2014 $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares	May 31, 2017 $ / shares shares	May 16, 2017 shares
Class of Stock [Line Items]
Common stock shares issued	1,955,000	1,121,250						120,000
Share price \| $ / shares	$ 18.00	$ 23
Stock issuance costs \| $	$ 2,300	$ 2,027
Cash proceeds from exercise of warrants \| $												$ 29,263
Warrants outstanding											1,297,151	1,524,573
Net proceeds from stock issuance \| $	$ 32,780	$ 23,762			$ 32,800						$ 32,770	$ 56,468
Reverse stock split ratio				0.6
Stockholders' equity, reverse stock split											0.6-for-1.0
Common stock, shares authorized							38,500,000				75,000,000	75,000,000		75,000,000
Common stock, par value \| $ / shares											$ 0.001	$ 0.001		$ 0.001
Warrants issued											1,297,151	1,524,573
Common Stock [Member]
Class of Stock [Line Items]
Common stock shares issued											1,955,000	3,621,250
Common stock issued for acquisitions, shares											941,548
Shares issued in connection with stock option exercise											151,121	80,829
Shares issued to outside service provider, shares											7,412	6,000
Repurchase of common stock, shares									7,500			7,500
Common Stock [Member] \| General and Administrative Expenses [Member]
Class of Stock [Line Items]
Stock-based compensation expense \| $											$ 130	$ 90
Common Stock [Member] \| Employee Stock Purchase Plan [Member]
Class of Stock [Line Items]
Shares issued in connection with stock option exercise											276,561	145,069
Number of shares cancelled in connection with forfeiture of restricted stock											4,184	23,470
Performance Bridge, Wazee Digital and Machine Box [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Common stock issued for acquisitions, shares											941,548
Bridge Loan [Member]
Class of Stock [Line Items]
Warrants outstanding			313,440												240,000
Fully diluted shares outstanding percentage			1.50%
Bridge Loan [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Common stock shares issued							210,000	210,000
April 2018 Warrant [Member]
Class of Stock [Line Items]
Warrants outstanding						20,000					20,000
Warrants maturity period						5 years					5 years
Westwood One [Member]
Class of Stock [Line Items]
Warrants canceled					247,422
Acacia [Member] \| Bridge Loan [Member]
Class of Stock [Line Items]
Common stock shares issued			90,000
Shares converted to common stock			590,717
Debt instrument principal balance \| $			$ 4,000
Warrants outstanding			120,000
Acacia [Member] \| Primary Warrant [Member]
Class of Stock [Line Items]
Issuance of stock due to warrants exercise			2,150,335
Cash proceeds from exercise of warrants \| $			$ 29,263
Warrant, percentage			10.00%
Warrants maturity period													5 years
Acacia [Member] \| Convertible Notes Payable [Member]
Class of Stock [Line Items]
Shares converted to common stock			1,523,746
Debt instrument principal balance \| $			$ 20,000										$ 20,000
Accrued interest \| $			737
Warrants maturity period													4 years
Series B Redeemable Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Common stock shares issued										3,092,781
Share price \| $ / shares										$ 4.85
Liquidation preference value \| $			18,668
Net book value \| $			$ 18,463
Shares converted to common stock			2,309,135
Series B Redeemable Convertible Preferred Stock [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Shares converted to common stock												2,309,135
Series A Redeemable Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Common stock shares issued										3,000,000
Share price \| $ / shares											$ 1.76
Liquidation preference value \| $			$ 8,598
Net book value \| $			$ 6,272
Shares converted to common stock			2,922,798
Series A Redeemable Convertible Preferred Stock [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Shares converted to common stock												2,922,798
Initial Public Offering [Member]
Class of Stock [Line Items]
Common stock shares issued			2,500,000
Share price \| $ / shares			$ 15.00										$ 15.00
Net proceeds from stock issuance \| $			$ 32,580
Stock issuance costs \| $			4,920
Initial Public Offering [Member] \| Acacia [Member] \| Convertible Notes Payable [Member]
Class of Stock [Line Items]
Debt instrument principal balance \| $			20,000
Accrued interest \| $			737
Initial Public Offering [Member] \| Acacia [Member] \| Convertible Notes Payable [Member] \| Bridge Loan [Member]
Class of Stock [Line Items]
Debt instrument principal balance \| $			8,000
Accrued interest \| $			$ 45