v3.7.0.1
Description of Business, Basis of Presentation and Summary of Significant Accounting Policies (Details)
3 Months Ended 6 Months Ended
May 01, 2017
USD ($)
vote
$ / shares
Jun. 29, 2016
shares
Jun. 30, 2017
USD ($)
shares
Jun. 30, 2017
USD ($)
segment
shares
Dec. 31, 2018
lease
Dec. 31, 2016
USD ($)
Sep. 26, 2014
USD ($)
Summary of Significant Accounting Policies [Line Items]              
Number of operating segments | segment       1      
Federal income tax expense     $ 0 $ 0      
Total combined future minimum payment obligations     2,503,000 2,503,000      
2017     1,053,000 1,053,000      
2018     933,000 933,000      
2019     369,000 369,000      
2020     140,000 140,000      
Operating Leases, Future Minimum Payments, Due in Five Years     8,000 8,000      
Long-term debt     58,092,000 58,092,000   $ 57,642,000  
Forecast [Member]              
Summary of Significant Accounting Policies [Line Items]              
Number of units | lease         2    
Performance Restricted Stock Units [Member]              
Summary of Significant Accounting Policies [Line Items]              
Allocated share-based compensation expense     $ 0 $ 0      
2016 LTIP [Member] | Performance Restricted Stock Units [Member]              
Summary of Significant Accounting Policies [Line Items]              
Granted (in shares) | shares   3,034,329          
Expiration period   33 months          
Remaining (in shares) | shares     2,461,816 2,461,816      
Threshold achievement level   75.00%          
2016 LTIP [Member] | Performance Restricted Stock Units [Member] | Minimum [Member]              
Summary of Significant Accounting Policies [Line Items]              
Target achievement level   0.00%          
2016 LTIP [Member] | Performance Restricted Stock Units [Member] | Maximum [Member]              
Summary of Significant Accounting Policies [Line Items]              
Target achievement level   100.00%          
Term Loan and Delayed Draw Term Loan Financing Agreement [Member] | Secured Debt [Member]              
Summary of Significant Accounting Policies [Line Items]              
Face amount of term loan             $ 60,000,000
Long-term debt     $ 58,092,000 $ 58,092,000      
InterActiveCorp (IAC) [Member]              
Summary of Significant Accounting Policies [Line Items]              
Merger agreement election, share election 1            
Merger agreement election, cash election (in dollars per share) | $ / shares $ 8.50            
Cash payment election proration limitation (more than) $ 130,000,000            
Termination fee $ 20,000,000            
Business Combination, Acquisition Related Costs     $ 4,429,000 $ 4,429,000      
InterActiveCorp (IAC) [Member] | Class A common stock [Member]              
Summary of Significant Accounting Policies [Line Items]              
Votes per share | vote 1            
Voting power 2.00%            
InterActiveCorp (IAC) [Member] | Class A common stock [Member] | Minimum [Member]              
Summary of Significant Accounting Policies [Line Items]              
Stock representing total value as a percentage 10.00%            
InterActiveCorp (IAC) [Member] | Class A common stock [Member] | Maximum [Member]              
Summary of Significant Accounting Policies [Line Items]              
Stock representing total value as a percentage 13.00%            
InterActiveCorp (IAC) [Member] | Class B common stock [Member]              
Summary of Significant Accounting Policies [Line Items]              
Votes per share | vote 10            
Voting power 98.00%            
InterActiveCorp (IAC) [Member] | Class B common stock [Member] | Minimum [Member]              
Summary of Significant Accounting Policies [Line Items]              
Stock representing total value as a percentage 87.00%            
InterActiveCorp (IAC) [Member] | Class B common stock [Member] | Maximum [Member]              
Summary of Significant Accounting Policies [Line Items]              
Stock representing total value as a percentage 90.00%