14. Quarterly Financial Data (unaudited)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (unaudited)

(14) Quarterly Financial Data (unaudited)

	Quarter Ended
	March 31,		June 30,		September 30,		December 31,
	(In thousands, except per share data)
2015
Revenues	$	85,989	$	88,361	$	93,991	$	95,308
Income before income tax expense		14,749		15,200		15,649		15,783
Net income		8,333		8,537		8,843		8,967
Earnings per share:
Basic	$	0.33	$	0.33	$	0.34	$	0.35
Diluted		0.26		0.27		0.28		0.29
2014
Revenues	$	68,146	$	71,594	$	77,050	$	83,467
Income before income tax expense		11,764		12,329		13,804		14,346
Net income		6,705		7,026		7,776		8,010
Earnings per share:
Basic	$	0.28	$	0.28	$	0.31	$	0.31
Diluted		0.21		0.22		0.24		0.25
2013
Revenues	$	54,594	$	70,482	$	64,066	$	66,634
Income before income tax expense		6,528		8,546		10,559		11,540
Net income		3,785		4,825		5,873		6,522
Earnings per share:
Basic	$	0.19	$	0.23	$	0.27	$	0.28
Diluted		0.12		0.15		0.19		0.21