v3.20.2

Document And Entity Information	9 Months Ended
Document And Entity Information	Sep. 30, 2020 shares
Document Information [Line Items]
Entity Registrant Name	OTELCO INC.
Entity Central Index Key	0001288359
Trading Symbol	otel
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Interactive Data Current	Yes
Entity Shell Company	false
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Title of 12(b) Security	Class A Common Stock ($0.01 par value per share)
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)	3,421,794
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)	0

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.

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Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.

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Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

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Title of a 12(b) registered security.

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Trading symbol of an instrument as listed on an exchange.

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OTELCO INC. 10-Q