Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions - Acquisitions - Additional Information (Detail)

v3.19.2
Recent Transactions - Acquisitions - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 06, 2019
Jun. 06, 2019
Mar. 18, 2019
Jun. 30, 2019
Mar. 01, 2017
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]          
Business combination, liabilities arising from contingencies, amount recognized         $ 500,000
Pjmedia.com website [Member]          
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]          
Asset purchase consideration transferred     $ 100,000 $ 100,000  
Investment House.Com [Member]          
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]          
Business Combination, Consideration Transferred $ 600,000 $ 600,000   $ 553,000  
Additional incentive payment 10.00% 10.00%   10.00%  
Business combination, liabilities arising from contingencies, amount recognized       $ 2,500