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Revenue (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Composition of Revenue

Revenue is comprised of the following:

		Three months ended June 30,								Six months ended June 30,
		2017				2018				2017				2018
Commercial advertising		$	54,814,498			$	53,414,405			$	102,364,320			$	101,116,875
Digital advertising			3,216,722				4,121,798				6,399,849				7,330,337
Other			2,982,194				4,089,093				5,989,796				8,331,711
		$	61,013,414			$	61,625,296			$	114,753,965			$	116,778,923

Deferred Revenue

		December 31,				June 30,
		2017				2018
Deferred revenue		$	1,893,508			$	3,305,989

		Three months ended June 30,								Six months ended June 30,
		2017				2018				2017				2018
Losses on receivables		$	722,882			$	188,383			$	838,779			$	414,114

Trade Sale Revenue

Commercial advertising includes revenue from the sale or trade of commercial spots to advertisers directly or through national, regional or local advertising agencies. Commercial spots may be aired or streamed. Each commercial spot is considered a performance obligation. Revenue is recognized when the commercial spots have aired or streamed. Trade sales are recorded at the estimated fair value of the goods or services received. If commercial spots are aired or streamed before the goods or services are received then a trade sales receivable is recorded. If goods or services are received before the commercial spots are aired or streamed then a trade sales payable is recorded.

		December 31,				June 30,
		2017				2018
Trade sales receivable		$	1,550,172			$	1,475,097
Trade sales payable			1,276,170				1,423,413

		Three months ended June 30,								Six months ended June 30,
		2017				2018				2017				2018
Trade sales revenue		$	2,126,125			$	1,736,658			$	4,772,553			$	3,619,088

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Tabular disclosure of contract balances and changes in contract balances.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045

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- Definition

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
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