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Intangible Assets, Net

6 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets, Net

5.	Intangible Assets, Net

Intangible assets, net consisted of the following at June 30, 2019 and December 31, 2018:

		June 30,												December 31,
		2019												2018
		(unaudited)
		Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount				Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount
Patents		$	50,000			$	(25,000	)		$	25,000			$	50,000			$	(23,750	)		$	26,250
Trade names, trademarks product names, URLs			555,000				(418,728	)			136,272				555,000				(390,979	)			164,021
Internally developed software			1,990,000				(1,943,822	)			46,178				1,990,000				(1,927,988	)			62,012
Subscriber/customer relationships			2,279,000				(1,730,392	)			548,608				2,279,000				(1,647,060	)			631,940
Total intangible assets		$	4,874,000			$	(4,117,942	)		$	756,058			$	4,874,000			$	(3,989,777	)		$	884,223

Amortization expense for the three and six months ended June 30, 2019 was $64,083 and $128,165, respectively, as compared to $421,189 and $842,372 for the three and six months ended June 30, 2018, respectively. The estimated aggregate amortization expense for each of the next five years will be $128,167 in 2019, $246,681 in 2020, $184,667 in 2021, $149,944 in 2022 and $46,599 in 2023.