Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Reserved Shares of Common Stock for Future Issuance

A summary of the reserved shares of common stock for future issuance are as follows:

	December 31,
Stock Plan	2020		2019
PCTEL, Inc. 2019 Stock Incentive Plan		2,109,184		2,240,669
PCTEL, Inc. 2015 Stock Incentive Plan		299,979		489,100
PCTEL, Inc. 2019 Employee Stock Purchase Plan		1,642,294		1,800,000
Total shares reserved		4,051,457		4,529,769

Summary of Stock-Based Compensation Expense by Type

The stock-based compensation expense by type is as follows:

	Years Ended December 31,
	2020		2019
Service-based awards	$	1,803	$	1,963
Director awards		402		402
Performance-based awards (long-term incentive plan)		28		226
Performance-based awards (short-term incentive plan)		0		1,335
Employee stock purchase plan		245		205
Stock options		1		2
Total	$	2,479	$	4,133

Stock-Based Compensation

The stock-based compensation is reflected in the consolidated statements of income as follows:

	Years Ended December 31,
	2020		2019
Cost of revenues	$	272	$	408
Research and development		530		652
Sales and marketing		559		672
General and administrative		1,118		2,401
Total	$	2,479	$	4,133

The following table presents a summary of the remaining unrecognized share-based compensation expense related to our outstanding share-based awards as of December 31, 2020:

Award Type	Remaining Unrecognized Compensation Expense		Weighted Average Life (Years)
Service-based awards	$	1,425		1.4
Performance-based awards	$	446		1.8

Summary of Service-based Restricted Stock Activity

The following table summarizes service-based restricted stock activity:

	Years ended December 31,
	2020					2019
Unvested Restricted Stock Awards	Shares			Weighted Average Fair Value		Shares			Weighted Average Fair Value
Beginning of year		477,187		$	6.11		838,967		$	6.21
Shares awarded		201,233			7.91		190,159			5.25
Shares vested		(239,615	)		6.18		(538,137	)		5.96
Shares cancelled		(3,967	)		6.19		(13,802	)		6.27
End of year		434,838		$	6.91		477,187		$	6.11

The following summarizes the service-based restricted stock unit activity:

	Years Ended December 31,
	2020					2019
Unvested Restricted Stock Units	Shares			Weighted Average Fair Value		Shares			Weighted Average Fair Value
Beginning of year		8,117		$	5.83		18,638		$	5.66
Units awarded		6,448			7.48		2,700			5.27
Units vested/Shares awarded		(5,482	)		5.80		(13,221	)		5.35
End of year		9,083		$	7.02		8,117		$	5.83

Summary of Stock Option Activity

The following table summarizes the Company’s stock option activity:

	Years Ended December 31,
	2020					2019
	Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price
Beginning of Year		150,246		$	7.11		423,534		$	7.15
Options exercised		(61,767	)		7.13		(154,409	)		7.18
Options forfeited		(188	)		5.00		0			0.00
Options cancelled/expired		(72,041	)		7.23		(118,879	)		7.16
End of Year		16,250		$	6.54		150,246		$	7.11
Exercisable		15,620		$	6.52		147,394		$	7.13

Information about Stock Options Outstanding Under all Stock Plans

The following table summarizes information about stock options outstanding under all stock option plans:

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Weighted Average Contractual Life (Years)		Weighted- Average Exercise Price		Number Exercisable		Weighted Average Exercise Price
$ 5.06		7,000		2.71	$	5.06		7,000	$	5.06
$ 6.98 — $ 7.55		4,750		2.16	$	7.22		4,120	$	7.26
$ 8.09 — $ 8.21		4,500		0.92	$	8.12		4,500	$	8.12
$ 5.06 — $ 8.21		16,250		2.05	$	6.54		15,620	$	6.52

Weighted Average Contractual Life and Intrinsic Value of the Options Outstanding and Options Exercisable

The weighted average contractual life and intrinsic value on December 31, 2020, was the following:

	Weighted Average Contractual Life (years)		Intrinsic Value
Options Outstanding		2.05	$	11
Options Exercisable		1.97	$	11

Summary of Performance Share Activity

The following table summarizes the performance award activity:

	Years Ended December 31,
	2020				2019
Unvested Performance Awards - at Target	Awards		Weighted Average Fair Value		Awards			Weighted Average Fair Value
Beginning of Year		171,417	$	5.27		0		$	0.00
Awards granted		145,289		8.70		174,117			5.27
Awards cancelled		0		0.00		(2,700	)		5.27
End of Year		316,706	$	6.84		171,417		$	5.27

Summary of ESSP Activity

The following table summarizes the ESPP activity:

	Years Ended December 31,
	2020					2019
	Shares			Weighted Average Fair Value at Grant Date		Shares			Weighted Average Fair Value at Grant Date
Outstanding, beginning of year		0		$	0.00		0		$	0.00
Granted		157,706			1.68		180,859			1.08
Vested		(157,706	)		1.68		(180,859	)		1.08
Outstanding, end of year		0		$	0.00		0		$	0.00

Calculation of Fair Value of Each Employee Stock Purchase Grant Under ESPP Using Black-Scholes Option-Pricing Model

The Company calculated the fair value of each employee stock purchase grant under the ESPP on the date of grant using the Black-Scholes option-pricing model using the following assumptions:

	Employee Stock Purchase Plan
	2020			2019
Dividend yield		4.1	%		4.1	%
Risk-free interest rate		0.1	%		2.5	%
Expected volatility		44	%		34	%
Expected life (in years)		0.5			0.5

Summary of Director Awards Activity

The following table summarizes the director awards activity:

	Years Ended December 31,
	2020						2019
	Shares			Weighted Average Fair Value at Grant Date			Shares			Weighted Average Fair Value at Grant Date
Outstanding, beginning of year		4,831		$	6.90			7,246		$	6.90
Granted		60,998			6.59			79,918			5.03
Vested		(63,413	)		(6.60	)		(82,333	)		(5.08	)
Outstanding, end of year		2,416		$	6.90			4,831		$	6.90