Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Identified Intangible Assets

The amount of identified intangible assets, including the respective amounts of accumulated amortization, are as follows:

	June 30, 2017			December 31, 2016
Database	$	30,923,000		$	28,146,000
Accumulated amortization		(21,763,000	)		(19,974,000	)
Database, net		9,160,000			8,172,000
Customer relationships		14,100,000			14,100,000
Accumulated amortization		(9,725,000	)		(9,263,000	)
Customer relationships, net		4,375,000			4,837,000
Website		19,289,000			17,538,000
Accumulated amortization		(13,742,000	)		(12,624,000	)
Website, net		5,547,000			4,914,000
Intangibles, net	$	19,082,000		$	17,923,000