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Revenue (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Composition of Revenue

Revenue is comprised of the following:

		Three months ended March 31,
		2019				2020
Commercial advertising		$	49,581,265			$	47,428,720
Digital advertising			3,506,949				5,356,673
Other			4,599,340				4,865,033
		$57,687,554				$57,650,426

Deferred Revenue

		December 31,				March 31,
		2019				2020
Deferred revenue		$	3,639,077			$	2,803,382

		Three months ended March 31,
		2019				2020
Losses on receivables		$	312,750			$	834,925

Trade Sale Revenue

		December 31,				March 31,
		2019				2020
Trade sales receivable		$	1,691,295			$	1,954,128
Trade sales payable			2,180,783				2,155,567

		Three months ended March 31,
		2019				2020
Trade sales revenue		$	2,248,876			$	1,968,260

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- Definition

Tabular disclosure of trade sales receivable and trade sales payable.

+ References

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- Definition

Tabular disclosure of contract balances and changes in contract balances.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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