Summary of Significant Accounting Policies - Additional Information (Details)		12 Months Ended
	Jun. 16, 2021 USD ($)	Dec. 31, 2021 USD ($) Customer Supplier	Dec. 31, 2020 USD ($) Customer Supplier	May 05, 2020 USD ($)	Dec. 31, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Net income (loss)		$ 655,000	$ (6,813,000)
Net cash provided by operating activities		8,948,000	6,519,000
Accumulated deficit		22,018,000	22,673,000
Cash and cash equivalents		34,258,000	12,957,000
Net increase in cash and cash equivalents		$ 21,301,000
Cash and cash equivalents maturity description		three months or less
FDIC Insurance limit		$ 250,000
Allowance for doubtful accounts		28,000	38,000		$ 40,000
Goodwill		5,227,000	5,227,000
Goodwill impairment		0	0
Impairment of long lived assets		$ 0	0
Deferred revenue recognition period		12 months
Estimated revenue expected to be recognized in the future		$ 7,691,000
Additional automatic renewal period of contract		12 months
Description of written notice of intent for renewal of contract term		Revenue pursuant to contracts containing a monthly fee is considered to be a single performance obligation consisting of a series of distinct services, and is recognized ratably over the contract period, which is generally 12 months, and the contract shall automatically renew for additional, successive 12-month terms unless written notice of intent not to renew is provided by one party to the other at least 30 days or 60 days prior to the expiration of the then current term.
Deferred revenue		$ 841,000	$ 504,000
Deferred revenue realization period			12 months
Revenue recognized, previously reported as deferred		504,000
Advertising and promotion costs		$ 97,000	$ 85,000
Percentage of tax benefits likelihood of being realized upon settlement of tax authority		greater than 50%
Principal amount	$ 2,152,000		$ 2,152,000
Debt Instrument, Increase, Accrued Interest	$ 23,000
Customer Concentration Risk | Sales Revenue, Net
Summary Of Significant Accounting Policies [Line Items]
Major customers | Customer		0	0
Customer Concentration Risk | Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Major customers | Customer		0	0
Supplier Concentration Risk
Summary Of Significant Accounting Policies [Line Items]
Amended and renewed term of agreement expiration date with supplier		Jun. 30, 2026
Each party's written notice of termination prior to end of amended and renewed term		30 days
The Company's written notice of termination during the initial term		24 months
Supplier's written notice of termination during the initial term		12 months
Remaining minimum purchase commitments through end of amended and renewed term		$ 23,800,000
Supplier Concentration Risk | Cost of Total Data Acqusition | Largest Data Supplier
Summary Of Significant Accounting Policies [Line Items]
Concentration risk		49.00%	46.00%
Supplier Concentration Risk | Total Accounts Payable | Data Supplier One
Summary Of Significant Accounting Policies [Line Items]
Concentration risk		26.00%	40.00%
Number of major suppliers | Supplier		1	2
Concentration Risk Percentage 2			16.00%
Customers With Pricing Contracts
Summary Of Significant Accounting Policies [Line Items]
Percentage of Revenue		80.00%	73.00%
Transactional Customers
Summary Of Significant Accounting Policies [Line Items]
Percentage of Revenue		20.00%	27.00%
Promissory Note [Member]
Summary Of Significant Accounting Policies [Line Items]
Non-recourse debt				$ 2,152,000
Interactive Data
Summary Of Significant Accounting Policies [Line Items]
Goodwill		$ 5,227,000	$ 5,227,000
Minimum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of intangible assets		5 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life of intangible assets		10 years
No Customer | Customer Concentration Risk | Sales Revenue, Net
Summary Of Significant Accounting Policies [Line Items]
Concentration risk		10.00%	10.00%
No Customer | Customer Concentration Risk | Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Concentration risk		10.00%	10.00%
United States
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents			$ 12,957,000