Stock incentive plan (Tables)

12 Months Ended

Dec. 31, 2021

Stock incentive plan

Schedule of options outstanding under company's stock incentive plan

The following table summarizes options outstanding under the Company’s stock incentive plans at the indicated dates:

	Year Ended December 31,
	2021							2020
		Weighted								Weighted
		Average								Average
		Exercise		Fair Value		Intrinsic				Exercise		Fair Value		Intrinsic
	Options	Price		Per Share		Value		Options		Price		Per Share		Value
Options outstanding, beginning of period	734	$	25.63	$	9.76				734	$	25.63	$	9.76
Granted	—		—		—				—		—		—
Forfeited	—		—		—				—		—		—
Exercised	—		—		—				—		—		—
Options outstanding, end of period	734	$	25.63	$	9.76	$	—		734	$	25.63	$	9.76	$	—
Options exercisable, end of period	734								734

Schedule of information about stock options outstanding

The following table summarizes information about stock options outstanding at December 31, 2021:

	Outstanding				Exercisable
		Weighted
		Average
		Remaining	Weighted			Weighted
		Years of	Average			Average
Range of	Number of	Contractual	Exercise		Number of	Exercise
Exercise Prices	Options	Life	Price		Options	Price
$25.28-$25.76	734	1.56	$	25.63	734	$	25.63
	734	1.56		25.63	734		25.63

Schedule of company's non vested restricted stock awards

A summary of changes in the Company’s non-vested restricted stock awards for the year follows:

		Weighted-
		Average		Aggregate
		Grant-Date		Intrinsic
	Shares	Fair-Value		Value
December 31, 2020	25,247	$	30.88	$	1,460,539
Granted	6,724		54.48		—
Vested	(8,838)		31.26		(511,278)
Forfeited	—		—		—
Other(1)	601		31.86		34,768
December 31, 2021	23,734	$	37.45	$	1,373,012

(1) Represents the incremental increase in shares that vested based on the restricted stock units vesting at the maximum potential value as opposed to the targeted value of the award.