Income Taxes - Components of Income Tax Expense (Benefit) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Current Federal alternative minimum tax ("AMT") expense
Current state and local tax expense
Deferred Federal tax expense	366,000	138,000
Deferred state and local tax expense	4,000	28,000
Consolidated income tax expense, including taxes attributable to discontinued operations	370,000	166,000
Less income tax (benefit) attributable to discontinued operations	(235,000)	(99,000)
Income tax expense	$ 605,000	$ 265,000