XML 63 R72.htm IDEA: XBRL DOCUMENT v2.4.0.8
Income Taxes - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Provision for income taxes $ 116,000 $ 1,688,000 $ 2,178,000
Charitable contribution, expiry period 2018    
Low-income housing, expiry period 2033    
Net operating loss carryforwards, expiry period 2032    
Cumulative loss position, significant negative evidence against the realizability of the deferred tax asset 3 years 3 years