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Summary Of Major Accounting Policies (Tables)	12 Months Ended
Summary Of Major Accounting Policies (Tables)	Dec. 31, 2018
Accounting Policies [Abstract]
Schedule of Temporary Differences Using the Percentage-of-Completion Method
Schedule of Earnings Per Share, Basic and Diluted	per Share. For each year presented, the only difference between our annual calculated weighted average basic and diluted number of shares outstanding is the effect of outstanding restricted stock units. Repurch