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Reserves For Claims (Summary Of Transactions In Reserves For Claims) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Reserves For Claims [Abstract]    
Balance, beginning of period $ 37,996,000 $ 38,198,700
Provisions related to: Current year 7,650,959 6,845,338
Provisions related to: Prior years (1,578,844) (3,502,911)
Total provision charged to operations 6,072,115 3,342,427
Claims paid, net of recoveries, related to: Current year (76,288) (305,079)
Claims paid, net of recoveries, related to: Prior years (4,913,827) (3,240,048)
Total claims paid, net of recoveries (4,990,115) (3,545,127)
Ending balance $ 39,078,000 $ 37,996,000