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Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Composition of Revenue

Revenue is comprised of the following:

		Year ended December 31,
		2019				2020
Commercial advertising		$	224,314,435			$	171,830,152
Digital advertising			19,815,489				21,605,742
Other revenue			17,424,190				12,707,967
		$	261,554,114			$	206,143,861

Deferred Revenue

		December 31, 2019				December 31, 2020
Deferred revenue		$	3,639,077			$	3,732,890

		Year ended December 31,
		2019				2020
Losses on receivables		$	557,582			$	2,318,987

Trade Sale Revenue

		December 31,				December 31,
		2019				2020
Trade sales receivable		$	1,691,295			$	956,999
Trade sales payable			2,180,783				892,543

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- Definition

Tabular disclosure of trade sales receivable and trade sales payable.

+ References

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- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ 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=121604090&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=121604090&loc=SL49130545-203045

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