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Intangible Assets, Net

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

5.	Intangible Assets

Intangible assets consist of the following:

	December 31,
	2017							2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Patents	$	50,000	$	(21,250	)	$	28,750	$	50,000	$	(18,750	)	$	31,250
Trade names, trademarks, product names, URLs		1,555,000		(585,479	)		969,521		1,555,000		(329,979	)		1,225,021
Internally developed software		2,720,000		(1,900,697	)		819,303		2,720,000		(1,498,029	)		1,221,971
Subscriber/customer relationships		4,219,000		(2,221,882	)		1,997,118		4,219,000		(1,338,799	)		2,880,201
Lead pool		282,000		(176,250	)		105,750		282,000		(35,250	)		246,750
Total intangible assets	$	8,826,000	$	(4,905,558	)	$	3,920,442	$	8,826,000	$	(3,220,807	)	$	5,605,193

Subscriber/customer relationships, trade names, trademarks, product names, URLs, Internally developed software and lead pool included an aggregate of $3,952,000 of intangible assets acquired as part of the business combination completed on October 7, 2016 as described in Note 3.

Amortization expense for the years ended December 31, 2017 and 2016 was $1,684,750 and $834,505, respectively. The estimated aggregate amortization expense for each of the next five years and thereafter will be $1,599,718 in 2018, $1,087,333 in 2019, $592,681 in 2020, $444,167 in 2021 and $196,543 thereafter.