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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Schedule of balances by type of long-lived assets
The balances by type were as follows at December 31:

 
 
2015
 
2014
(In thousands)
 
Cost
 
Accumulated
Depreciation/
Amortization
 
Cost
 
Accumulated
Depreciation/
Amortization
Furniture and fixtures
 
$
1,904

 
$
(1,005
)
 
$
1,411

 
$
(713
)
Office equipment
 
600

 
(345
)
 
472

 
(178
)
Computer hardware
 
4,526

 
(3,254
)
 
3,258

 
(2,523
)
Purchased software
 
34,155

 
(31,825
)
 
32,352

 
(31,110
)
Costs of internal-use software
 
6,479

 
(5,298
)
 
5,868

 
(4,320
)
Leasehold improvements
 
3,836

 
(752
)
 
1,740

 
(416
)
Total
 
$
51,500

 
$
(42,479
)
 
$
45,101

 
$
(39,260
)