Basis of Financial Statement Preparation	9 Months Ended
Sep. 29, 2012
Basis of Financial Statement Preparation [Abstract]
Basis of Financial Statement Preparation [Text Block]	Basis of Financial Statement Preparation The condensed consolidated financial statements present the financial position, results of operations and cash flows of The Davey Tree Expert Company and its subsidiaries. “We,” “us,” “our,” “Davey,” “Davey Tree” and the “Company” means The Davey Tree Expert Company and its subsidiaries, unless the context indicates otherwise. We have prepared the accompanying unaudited condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and with the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information. The consolidated financial statements include all adjustments which, in the opinion of management, are necessary for a fair presentation of the results for the interim periods presented. All such adjustments are of a normal, recurring nature. All significant intercompany accounts and transactions have been eliminated. Certain information and disclosures required by U.S. GAAP for complete financial statements have been omitted in accordance with the rules and regulations of the SEC. We suggest that these condensed consolidated financial statements be read in conjunction with the financial statements included in our annual report on Form 10-K for the year ended December 31, 2011 (the “2011 Annual Report”). Use of Estimates in Financial Statement Preparation--The preparation of financial statements in accordance with U.S. GAAP requires the use of estimates and assumptions that affect reported amounts. Our consolidated financial statements include amounts that are based on management’s best estimates and judgments. Estimates are used for, but not limited to, accounts receivable valuation, depreciable lives of fixed assets, self-insurance accruals, income taxes and revenue recognition. Actual results could differ from those estimates. Interim Results of Operations--Interim results may not be indicative of calendar year performance because of seasonal and short-term variations.

Basis of Financial Statement Preparation

The condensed consolidated financial statements present the financial position, results of operations and cash flows of The Davey Tree Expert Company and its subsidiaries. “We,” “us,” “our,” “Davey,” “Davey Tree” and the “Company” means The Davey Tree Expert Company and its subsidiaries, unless the context indicates otherwise.

We have prepared the accompanying unaudited condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and with the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information. The consolidated financial statements include all adjustments which, in the opinion of management, are necessary for a fair presentation of the results for the interim periods presented. All such adjustments are of a normal, recurring nature. All significant intercompany accounts and transactions have been eliminated.

Certain information and disclosures required by U.S. GAAP for complete financial statements have been omitted in accordance with the rules and regulations of the SEC. We suggest that these condensed consolidated financial statements be read in conjunction with the financial statements included in our annual report on Form 10-K for the year ended December 31, 2011 (the “2011 Annual Report”).

Use of Estimates in Financial Statement Preparation--The preparation of financial statements in accordance with U.S. GAAP requires the use of estimates and assumptions that affect reported amounts. Our consolidated financial statements include amounts that are based on management’s best estimates and judgments. Estimates are used for, but not limited to, accounts receivable valuation, depreciable lives of fixed assets, self-insurance accruals, income taxes and revenue recognition. Actual results could differ from those estimates.

Interim Results of Operations--Interim results may not be indicative of calendar year performance because of seasonal and short-term variations.