Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2018

Postemployment Benefits [Abstract]

Schedule of Activity Relating to Restricted Stock Units Outstanding

The following is a schedule of the activity relating to RSUs outstanding:

	Number of			Fair Value
	RSUs Outstanding			Amount		Average Per RSU
RSUs OUTSTANDING AT DECEMBER 31, 2015		400,375
Granted		86,600		$	1,593,400	$	18.40
Settled		(34,650	)		635,800		18.35
Cancelled		(22,550	)	$	415,400	$	18.42
RSUs OUTSTANDING AT DECEMBER 31, 2016		429,775
Granted		94,250		$	2,484,400	$	26.36
Settled		(51,770	)		1,306,300		25.23
Cancelled		(23,330	)	$	587,100	$	25.17
RSUs OUTSTANDING AT DECEMBER 31, 2017		448,925
Granted		124,650		$	3,106,400	$	24.92
Settled		—			—		—
Cancelled		—		$	—	$	—
RSUs OUTSTANDING AT DECEMBER 31, 2018		573,575

Schedule of Vesting Activity Relating to Restricted Stock Units Outstanding

The following is a schedule of the vesting activity relating to RSUs outstanding:

	Number of RSUs Vested			Fair Value
RSUs VESTED AT DECEMBER 31, 2015		202,344
Vested		54,125		$	1,379,600
Settled		(34,650	)	$	635,800
RSUs VESTED AT DECEMBER 31, 2016		221,819
Vested		55,336		$	1,502,900
Settled		(51,770	)	$	1,306,300
RSUs VESTED AT DECEMBER 31, 2017		225,385
Vested		63,635		$	1,871,500
Settled		—		$	—
RSUs VESTED AT DECEMBER 31, 2018		289,020