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Income Taxes (Summary of Tax Provision Allocation to Financial Statement Items) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
Income from continuing operations	$ 12,605	$ 9,287	$ 10,104
Income/(loss) from discontinued operations			387
Stockholders' equity, unrealized gain (loss) on investment securities & foreign currency	52	(74)	(357)
Additional paid in capital, share-based compensation tax benefit		(230)	(247)
Total Income Tax Expense	$ 12,657	$ 8,983	$ 9,887

X

- Definition

The sum of the tax effects of unrealized gain (loss) on investment securities & foreign currency occurring during the period that have been charged or credited directly to other comprehensive income or to related components of shareholders' equity.

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Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of income tax expense (benefit) for continuing operations, discontinued operations, other comprehensive income, and items charged (credited) directly to shareholders' equity.

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