XML 32 R31.htm IDEA: XBRL DOCUMENT v2.4.0.6
Reserves For Claims (Summary Of Transactions In Reserves For Claims) (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Reserves For Claims [Abstract]      
Balance, beginning of period $ 39,078,000 $ 37,996,000 $ 37,996,000
Provision, charged to operations (389,058) 1,631,359 6,072,115
Payments of claims, net of recoveries (380,942) (1,342,359) (4,990,115)
Ending balance $ 38,308,000   $ 39,078,000