Loan Receivable and Investment in Warrants (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 14, 2017	Aug. 15, 2016
Loan receivable and accrued interest	$ 19,749,000	$ 18,616,000
Fair value inputs recovery	100.00%
Veritone Bridge Loan			$ 4,000,000
Bridge loan stated interest rate			8.00%
Veritone Bridge Loan Advance 1			$ 1,000,000
Bridge Loan Conversion Price	$ 8.1653
Bridge loan conversion limit	981,958
Upfront Shares	25,000		100,000
Bridge Installment Shares	37,500		150,000
Bridge Warrant Share	50,000		200,000
Fair Value Inputs, Discount for Lack of Marketability	7.00%
Investment warrants and shares	$ 2,196,000	1,960,000
Total Investment, Long Term	21,945,000	20,576,000
Accretion (Amortization) of Discounts and Premiums, Investments	369,000	576,000
Interest Income, Other	668,000	862,000
Maximum Investment in Veritone				$ 50,000,000
Secured Convertible Promissory Note	21,000,000			20,000,000
Unamortized loan discount	(1,251,000)	(1,384,000)
Secured Promissory Note Advance				10,000,000
1st Loan Warrant Condition: Proceeds from Private Financing				10,000,000
First Loan Warrant				700,000
Second Loan Warrant				700,000
Veritone Primary Warrant				50,000,000
Primary Warrant Condition: Offering Proceeds				$ 15,000,000
Time-sharing Transactions, Stated Interest Rate for Notes Receivable				6.00%
Interest Receivable	$ 585,000	$ 286,000
Minimum [Member]
Fair Value Assumptions, Expected Volatility Rate	40.00%
Fair Value Inputs, Probability of Default	25.00%
Maximum [Member]
Fair Value Assumptions, Expected Volatility Rate	50.00%
Fair Value Inputs, Probability of Default	75.00%
First Loan [Member]
Receivable with Imputed Interest, Effective Yield (Interest Rate)	20.00%
Second Loan [Member]
Receivable with Imputed Interest, Effective Yield (Interest Rate)	9.00%
Bridge Loan [Member]
Receivable with Imputed Interest, Effective Yield (Interest Rate)	48.00%