Note R - Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Text Block]

NOTE R—SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

	2014								2013
	1Q		2Q		3Q		4Q		1Q		2Q		3Q		4Q
Contract revenue	$	245,052	$	263,860	$	264,796	$	276,426	$	233,921	$	241,568	$	244,055	$	229,759
Operating income		16,650		17,574		18,528		16,610		17,649		17,295		17,154		12,587
Net income	$	9,716	$	9,998	$	11,553	$	8,763	$	10,112	$	10,331	$	11,131	$	7,756
Earnings per share:
Basic	$	0.49	$	0.51	$	0.59	$	0.45	$	0.52	$	0.52	$	0.56	$	0.39
Diluted		0.48		0.50		0.59		0.44		0.51		0.52		0.55		0.38
Weighted-average common shares outstanding
Basic		19,804		19,795		19,450		19,409		19,543		19,706		19,802		19,826
Diluted		20,277		20,082		19,713		19,744		19,875		19,996		20,165		20,233