Income Taxes (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Taxes [Line Items]
Estimated annual effective tax rate	35.40%	33.70%
Deferred income tax expense (benefit)	$ 733	$ (642)
Tax Adjustments, Settlements, and Unusual Provisions	247
Net discrete tax benefit for research and development tax credits		368
Effective Income Tax Rate Continuing Operations	187.10%	(108.10%)
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions	869
Valuation Allowance, Deferred Tax Asset, Change in Amount	$ 596
State and Local Jurisdiction [Member] | NEW YORK
Income Taxes [Line Items]
Effective Income Tax Rate Continuing Operations	0.00%