Changes In Estimates	3 Months Ended
Changes In Estimates	Mar. 31, 2013
Change In Estimate [Abstract]
Changes In Estimates	3. During the economic downturn we substantially reduced our workforce in the construction contract division keeping primarily key personnel on staff. In 2012, we significantly increased the number of construction contracts we were awarded, requiring a larger skilled workforce than we had in place. Finding the personnel with the needed skills proved challenging at best, requiring additional training of new personnel and, in some cases, contracting out work we had intended to perform in house in an attempt to meet construction deadlines. These factors continued to result in cost overruns and gross profit declines in our Ready Mixed Concrete Business during the first quarter ending March 31, 2013. The change in estimates in construction contracts resulted in a $1.5 million reduction in net income recognized during the first quarter of 2013.

The entire disclosure for reporting accounting changes and error corrections. It includes the conveyance of information necessary for a user of the Company's financial information to understand all aspects and required disclosure information concerning all changes and error corrections reported in the Company's financial statements for the period.

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