Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Summary of Significant Accounting Policies

Activity in the allowance for doubtful accounts

A provision for doubtful accounts is recorded based on our judgment of the collectability of receivables. Amounts are written off when determined to be fully uncollectible. Delinquent accounts are based on contractual terms. The activity in the allowance for doubtful accounts during the years ended December 31, 2020, 2019 and 2018 was as follows:

							Write Off of
	Balance		Charged to		Allowance		Uncollectible		Balance at
	at Beginning		Costs and		From		Accounts, Net of		End of
Year Ended	of Period		Expenses		Acquisitions		Recoveries		Period
	(in thousands)
December 31, 2020	$	671	$	420	$	—	$	(443)	$	648
December 31, 2019	$	759	$	578	$	—	$	(666)	$	671
December 31, 2018	$	727	$	444	$	25	$	(437)	$	759

Property and equipment

Property and equipment consisted of the following:

	Estimated		December 31,
	Useful Life		2020		2019
	(In thousands)
Land and land improvements		—	$	14,559	$	14,693
Buildings		31.5 years		38,059		37,984
Towers and antennae		7-15 years		25,976		24,762
Equipment		3-15 years		53,547		54,321
Furniture, fixtures and leasehold improvements		7-20 years		7,189		7,169
Vehicles		5 years		3,350		3,474
				142,680		142,403
Accumulated depreciation				(87,795)		(83,692)
Net property and equipment			$	54,885		58,711

Schedule of Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:

	Years Ended December 31,
	2020		2019		2018
	(In thousands, except per share data)
Numerator:
Net income (loss)	$	(1,913)	$	13,279	$	13,690
Less: Income (loss) allocated to unvested participating securities		(21)		292		256
Net income (loss) available to common stockholders	$	(1,892)	$	12,987	$	13,434
Denominator:
Denominator for basic earnings (loss) per share — weighted average shares		5,871		5,834		5,829
Effect of dilutive securities:
Common stock equivalents		—		—		—
Denominator for diluted earnings (loss) per share — adjusted weighted-average shares and assumed conversions		5,871		5,834		5,829
Earnings (loss) per share:
Basic	$	(0.32)	$	2.23	$	2.30
Diluted	$	(0.32)	$	2.23	$	2.30