XML 32 R36.htm IDEA: XBRL DOCUMENT v2.4.0.6
EMPLOYEE BENEFIT PLAN (Detail Textuals) (USD $)
9 Months Ended
Sep. 30, 2012
Multiple Employer Retirement Income Plan
Sep. 30, 2012
Supplemental Retirement Plan ('SERP')
Dec. 31, 2011
Supplemental Retirement Plan ('SERP')
Multiemployer Plans [Line Item]      
Contribution by employer for retirement income plan $ 4,146,000    
SERP assets   $ 9,111,000 $ 8,251,000