Organization and Business Basis of Presentation Basis of Presentation, Significant Accounting Policies and New Accounting Pronouncements [Text Block] Basis of Presentation This element aggregates basis of presentation, significant accounting policies, and new accounting pronouncements into a single block of text. Document and Entity Information CONSOLIDATED BALANCE SHEETS Statement [Table] Statement, Scenario [Axis] Scenario, Unspecified [Domain] Statement Statement [Line Items] Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Beginning of period End of period Accounts Receivable, Net, Current Accounts receivable, net of allowances of $1,078 and $947, respectively Costs and estimated earnings in excess of billings on uncompleted contracts Costs in Excess of Billings on Uncompleted Contracts or Programs Expected to be Collected within One Year Deferred Tax Assets, Net, Current Deferred income tax assets Insurance Settlements Receivable Receivable for insurance claims in excess of deductibles Income Taxes Receivable, Current Refundable income taxes Other Assets, Current Other current assets Assets, Current Total current assets Inventory, Raw Materials and Supplies, Net of Reserves Construction materials inventory Property, Plant and Equipment, Net Property and equipment, net of accumulated depreciation of $64,345 and $46,878, respectively Goodwill Goodwill Intangible Assets, Net (Excluding Goodwill) Intangible assets, net of accumulated amortization of $2,223 and $1,888, respectively Other Assets, Noncurrent Other assets Assets Total assets Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] Current liabilities Accounts Payable, Current Accounts payable Billings in Excess of Cost, Current Billings in excess of costs and estimated earnings on uncompleted contracts Self Insurance Reserve, Current Accrued self insurance Other Liabilities, Current Other current liabilities Liabilities, Current Total current liabilities Accrued income taxes Accrued Income Taxes, Current Short-term Debt Short-term borrowings Long-term Debt, Current Maturities Current maturities of long-term debt Long-term Debt, Excluding Current Maturities Long-term debt Deferred Tax Liabilities, Noncurrent Deferred income tax liabilities Other Liabilities, Noncurrent Other liabilities Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies Liabilities and Equity Total liabilities and stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity Additional paid-in capital Additional Paid in Capital, Common Stock Retained Earnings (Accumulated Deficit) Retained earnings Treasury Stock, Value Treasury stock, at cost - 3,310 and 0 shares, respectively Preferred Stock, Value, Outstanding Preferred stock-$0.01 par value per share; 4,000,000 authorized shares; none issued and outstanding at December 31, 2011 and 2010 Common Stock, Value, Outstanding Common stock-$0.01 par value per share; 100,000,000 authorized shares; 20,405,044 and 20,007,081 shares issued and outstanding at December 31, 2011 and 2010, respectively Stockholders' Equity Attributable to Parent Total stockholders' equity Balance Balance Allowance for Doubtful Accounts Receivable, Current Allowances on accounts receivable (in dollars) Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation on property and equipment (in dollars) Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization on intangible assets (in dollars) Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, authorized shares Preferred Stock, Shares Issued Preferred stock, issued shares Preferred Stock, Shares Outstanding Preferred stock, outstanding shares Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, authorized shares Common Stock, Shares, Issued Common stock, issued shares Common Stock, Shares, Outstanding Common stock, outstanding shares Treasury Stock, Shares Treasury stock, shares Sales Revenue, Services, Net Contract revenues Cost of Services Contract costs Gross Profit Gross profit Selling, General and Administrative Expense Selling, general and administrative expenses Amortization of Intangible Assets Amortization of intangible assets Gain (Loss) on Sale of Property Plant Equipment Gain on sale of property and equipment Operating Income (Loss) Income from operations Nonoperating Income (Expense) [Abstract] Other income (expense): Investment Income, Interest Interest income Interest Expense Interest expense Other Nonoperating Income (Expense) Other, net Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income before provision for income taxes Income Tax Expense (Benefit) Income tax expense Earnings Per Share Income per common share: Earnings Per Share, Basic -Basic (in dollars per share) Earnings Per Share, Diluted -Diluted (in dollars per share) Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average number of common shares and potential common shares outstanding: Weighted Average Number of Shares Outstanding, Basic -Basic (in shares) Weighted Average Number of Shares Outstanding, Diluted -Diluted (in shares) CONSOLIDATED STATEMENTS OF OPERATIONS Cash and Cash Equivalents, at Carrying Value [Abstract] Cash and cash equivalents: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash flows provided by operating activities- Depreciation Depreciation and amortization of property and equipment Share-based Compensation Stock-based compensation expense Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefit from stock-based awards Excess tax benefit from stock-based awards Deferred Income Tax Expense (Benefit) Deferred income taxes Other Noncash Expense Other non-cash items Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities Repayments under revolving credit facility Repayments of Long-term Lines of Credit Payments of Debt Issuance Costs Debt issuance costs Increase (Decrease) in Accounts Receivable Accounts receivable, net Increase (Decrease) in Unbilled Receivables Costs and estimated earnings in excess of billings on uncompleted contracts Costs and estimated earnings in excess of billings on uncompleted contracts Increase (Decrease) in Insurance Settlements Receivable Receivable for insurance claims in excess of deductibles Increase (Decrease) in Other Operating Assets Other assets Accounts payable Increase (Decrease) in Accounts Payable Billings in excess of costs and estimated earnings on uncompleted contracts Increase (Decrease) in Billing in Excess of Cost of Earnings Increase (Decrease) in Self Insurance Reserve Accrued self insurance Increase (Decrease) in Other Operating Liabilities Other liabilities Increase (Decrease) in Inventories Construction materials inventory Net cash flows provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities: Proceeds from Sale of Property, Plant, and Equipment Proceeds from sale of property and equipment Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash flows used in investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities: Repayments of Long-term Debt Repayments on term loan Repayments of Long-term Capital Lease Obligations Payments of capital lease obligations Proceeds from Stock Options Exercised Employee stock option transactions Excess Tax Benefit from Share-based Compensation, Financing Activities Excess tax benefit from stock-based awards Payments for Repurchase of Common Stock Purchase of treasury stock Other financing activities Proceeds from (Payments for) Other Financing Activities Equity financing costs Payments of Stock Issuance Costs Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash flows provided by (used in) financing activities Borrowings under revolving credit facility Proceeds from Issuance of Debt CONSOLIDATED STATEMENTS OF CASH FLOWS Organization, Business, Basis of Presentation Organization, Business, Basis of Presentation Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Fair Value Measurements Fair Value Measurements Fair Value Disclosures [Text Block] Supplemental Cash Flows Cash Flow, Supplemental Disclosures [Text Block] Supplemental Cash Flows Contracts in Process Quarterly Financial Data (Unaudited) Contracts in Process Long-term Contracts or Programs Disclosure [Text Block] Income Taxes Income Tax Disclosure [Text Block] Income Taxes Commitments and Contingencies Commitments and Contingencies Commitments Contingencies and Guarantees [Text Block] Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation Segment Information Segment Reporting Disclosure [Text Block] Segment Information Earnings Per Share [Text Block] Earnings Per Share Organization and Business Nature of Operations [Text Block] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Stock Repurchased During Period Value Payroll Tax Withholding Return of shares in lieu of payroll tax withholding Equity impact of the value of stock that has been repurchased during the period and has not been retired and is held in treasury. Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Cash and Deemed Dividends Cash and Deemed Dividends Disclosure [Text Block] Cash and Deemed Dividends The entire disclosure for dividends declared and paid as of the financial reporting date. Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Property and Equipment Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Other Intangible Assets Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accrued Liabilities Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Quarterly Financial Information [Text Block] Quarterly Financial Data (Unaudited) Subsequent Events [Text Block] Subsequent Events Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Summary of Significant Accounting Policies Goodwill and Other Intangible Assets Accrued Liabilities Debt and Borrowing Arrangements Stockholders' Equity Employee Benefit Plans Subsequent Events Statement, Equity Components [Axis] Equity Component [Domain] Preferred Stock Preferred Stock [Member] Common Stock Common Stock [Member] Additional Paid-In Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Treasury Stock Treasury Stock [Member] Increase (Decrease) in Stockholders Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Excess tax benefit from stock-based awards Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Stock-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Amendment Description Stockholders' Equity, Period Increase (Decrease) CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY Stock issued under compensation plans, net Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Forfeiture of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Recently Issued and Proposed Accounting Pronouncements Accounts Receivable Accounts Receivable Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Net increase (decrease) in cash and cash equivalents Net Cash Provided by (Used in) Continuing Operations Stock issued in lieu of director retainer Stock Issued in Lieu of Director Retainer This element represents the amount of Stock issued in lieu of director retainer. Net Income (Loss) Attributable to Parent Net income Net income Treasury Stock, Value, Acquired, Cost Method Return of shares in lieu of payroll tax withholding Stock Issued During Period, Value, Other Stock issued - other Payments Related to Tax Withholding for Share-based Compensation Restricted stock tax withholdings New Accounting Pronouncements [Text Block] Recently Issued and Proposed Accounting Pronouncements The entire disclosure for new accounting pronouncements that have been issued but not yet adopted, and new accounting pronouncements adopted. Debt Disclosure [Text Block] Debt and Borrowing Arrangements Pension and Other Postretirement Benefits Disclosure [Text Block] Employee Benefit Plans