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Retirement Agreements and Other Postretirement Benefit Plan Changes in Amounts Related to Accumulated Other Comprehensive Income, Pre-tax (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Balance at beginning of year $ 155,234 $ 82,392  
Unrecognized prior service credit (cost) 1,518 (9,396) (13,038)
Amortization of loss, net (6,293) (680) 318
Actuarial (gain) loss (77,213) 82,918 115,089
Balance at end of year $ 73,246 $ 155,234 $ 82,392