Lines of Business (Summary Of Business Segment) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Sales to unaffiliated customers	$ 23,461,551	$ 21,364,465
Intersegment sales	0	0
Total net sales	23,461,551	21,364,465
Loss from operations	(3,723,158)	(4,162,165)
Other income, net	57,513	3,800,972
Loss from continuing operations before income taxes	(3,665,645)	(361,193)
Capital Expenditures	3,007,395	6,971,726
Total Assets	175,658,266		174,105,862
Cement Business [Member]
Segment Reporting Information [Line Items]
Sales to unaffiliated customers	9,935,674	8,444,664
Intersegment sales	2,865,060	2,853,657
Total net sales	12,800,734	11,298,321
Loss from operations	(2,030,331)	(2,717,570)
Capital Expenditures	1,823,786	4,667,224
Total Assets	93,745,632		91,279,098
Ready-Mixed Concrete Business [Member]
Segment Reporting Information [Line Items]
Sales to unaffiliated customers	13,525,877	12,919,801
Intersegment sales	0	0
Total net sales	13,525,877	12,919,801
Loss from operations	(1,692,827)	(1,444,595)
Capital Expenditures	1,183,609	2,304,502
Total Assets	35,026,763		34,106,903
Adjustments and Elimination [Member]
Segment Reporting Information [Line Items]
Sales to unaffiliated customers	0	0
Intersegment sales	(2,865,060)	(2,853,657)
Total net sales	(2,865,060)	(2,853,657)
Identifiable [Member]
Segment Reporting Information [Line Items]
Total Assets	128,772,395		125,386,001
Corporate [Member]
Segment Reporting Information [Line Items]
Total Assets	$ 46,885,871		$ 48,719,861