Income Taxes (Tables)

6 Months Ended

Jun. 30, 2013

Income Tax Disclosure [Abstract]

Income Tax Reconciliation Computed at Federal Statutory Rates to Income Tax Expense

A reconciliation of income taxes computed at federal statutory rates to income tax expense is as follows (dollar amounts in thousands):

	Three Months Ended June  30,
	2013					2012
Provision for income taxes at statutory rate	$	4,063		35.0	%	$	4,042		35.0	%
State and local income taxes, net of federal tax benefit		178		1.5	%		159		1.4	%
Stock compensation		70		0.6	%		72		0.6	%
Research credits		(51	)	(0.4	)%		—		—
Disqualifying dispositions of incentive stock options		(32	)	(0.3	)%		(46	)	(0.4	)%
Other, net		71		0.6	%		(94	)	(0.8	)%
Reported income tax provision	$	4,299		37.0	%	$	4,133		35.8	%

	Six Months Ended June  30,
	2013					2012
Provision for income taxes at statutory rate	$	8,560		35.0	%	$	7,299		35.0	%
State and local income taxes, net of federal tax benefit		369		1.5	%		287		1.4	%
Stock compensation		140		0.6	%		134		0.6	%
Research credits		(376	)	(1.5	)%		—		—
Disqualifying dispositions of incentive stock options		(181	)	(0.8	)%		(79	)	(0.4	)%
Effect of rate changes on deferred taxes		—		—			128		0.6	%
Other, net		18		0.1	%		(49	)	(0.2	)%
Reported income tax provision	$	8,530		34.9	%	$	7,720		37.0	%