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Accounting Policies Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Use of Estimates, Policy [Policy Text Block] | Use of Estimates The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Significant areas requiring management estimates include the following key financial areas: Allowance for Doubtful Accounts The Company evaluates the collectability of its accounts receivable based on a combination of factors. In circumstances in which the Company is aware of a specific customer’s inability to meet its financial obligations to the Company (for example, bankruptcy filings, accounts turned over for collection or litigation), the Company records a specific reserve for these bad debts against amounts due to reduce the net recognized receivable to the amount the Company reasonably believes will be collected. For all other customers, the Company recognizes reserves for these bad debts based on the length of time the receivables are past due. Specifically, amounts that are 90 days or more past due are reserved at 50.0% for Expedited LTL, 10.0% for Intermodal, 25.0% for Pool and up to 50.0% for TLS. If circumstances change (i.e., the Company experiences higher than expected defaults or an unexpected material adverse change in a customer’s ability to meet its financial obligations to the Company), the estimates of the recoverability of amounts due to the Company could be changed by a material amount. Accounts are written off after all means of collection, including legal action, have been exhausted. Allowance for Revenue Adjustments The Company’s allowance for revenue adjustments consists of amounts reserved for billing rate changes that are not captured upon load initiation. These adjustments generally arise: (1) when the sales department contemporaneously grants small rate changes (“spot quotes”) to customers that differ from the standard rates in the system; (2) when freight requires dimensionalization or is reweighed resulting in a different required rate; (3) when billing errors occur; and (4) when data entry errors occur. When appropriate, permanent rate changes are initiated and reflected in the system. The Company monitors the manual revenue adjustments closely through the employment of various controls that are in place to ensure that revenue recognition is not compromised and that fraud does not occur. During 2017, average revenue adjustments per month were approximately $255 on average revenue per month of approximately $91,735 (0.3% of monthly revenue). In order to estimate the allowance for revenue adjustments related to ending accounts receivable, the Company prepares an analysis that considers average monthly revenue adjustments and the average lag for identifying and quantifying these revenue adjustments. Based on this analysis, the Company establishes an allowance covering approximately 35-65 days (dependent upon experience in the last twelve months) of average revenue adjustments, adjusted for rebates and billing errors. The lag is periodically adjusted based on actual historical experience. Additionally, the average amount of revenue adjustments per month can vary in relation to the level of sales or based on other factors (such as personnel issues that could result in excessive manual errors or in excessive spot quotes being granted). Both of these significant assumptions are continually evaluated for appropriateness. Self-Insurance Loss Reserves Given the nature of the Company’s operating environment, the Company is subject to vehicle and general liability, workers’ compensation and employee health insurance claims. To mitigate a portion of these risks, the Company maintains insurance for individual vehicle and general liability claims exceeding $1,000 and workers’ compensation claims and employee health insurance claims exceeding $350 and $225, respectively, except in Ohio, where for workers’ compensation we are a qualified self-insured entity with a $500 self-insured retention. The amount of self-insurance loss reserves and loss adjustment expenses is determined based on an estimation process that uses information obtained from both company-specific and industry data, as well as general economic information. The estimation process for self-insurance loss exposure requires management to continuously monitor and evaluate the life cycle of claims. Using data obtained from this monitoring and the Company’s assumptions about the emerging trends, management develops information about the size of ultimate claims based on its historical experience and other available market information. The most significant assumptions used in the estimation process include determining the trend in loss costs, the expected consistency in the frequency and severity of claims incurred but not yet reported, changes in the timing of the reporting of losses from the loss date to the notification date, and expected costs to settle unpaid claims. The Company utilizes a semi-annual actuarial analyses to evaluate open claims and estimate the ongoing development exposure.
Revenue Recognition, Policy [Policy Text Block] | Revenue Recognition Operating revenue and related costs are recognized as of the date shipments are completed. The transportation rates the Company charges its customers consist of base transportation rates and fuel surcharge rates. The revenues earned and related direct freight expenses incurred from the Company’s base transportation services are recognized on a gross basis in revenue and in purchased transportation. Transportation revenue is recognized on a gross basis as the Company is the primary obligor. The fuel surcharges billed to customers and paid to owner-operators and third party transportation providers are recorded on a net basis as the Company is not the primary obligor with regards to the fuel surcharges. Please see Recent Accounting Pronouncements for expected changes to revenue recognition.
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash Equivalents The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash and cash equivalents.
Inventories, Policy [Policy Text Block] | Inventories Inventories of tires, replacement parts, supplies, and fuel for equipment are stated at the lower of cost or market utilizing the FIFO (first-in, first-out) method of determining cost. Inventories of tires and replacement parts are not material in the aggregate. Replacement parts are expensed when placed in service, while tires are capitalized and amortized over their expected life. Replacement parts and tires are included as a component of other operating expenses in the consolidated statements of comprehensive income.
Property and Equipment, Policy [Policy Text Block] | Property and Equipment Property and equipment are stated at cost. Expenditures for normal repair and maintenance are expensed as incurred. Depreciation of property and equipment is calculated based upon the cost of the asset, reduced by its estimated salvage value, using the straight-line method over the estimated useful lives as follows:
Buildings |  | 30-40 years
Equipment |  | 3-10 years
Leasehold improvements |  | Lesser of Useful Life or Initial Lease Term
Depreciation expense for each of the three years ended December 31, 2017, 2016 and 2015 was $30,862, $28,088 and $26,252 respectively. The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Impairment is recognized on assets classified as held and used when the sum of undiscounted estimated cash flows expected to result from the use of the asset is less than the carrying value. If such measurement indicates a possible impairment, the estimated fair value of the asset is compared to its net book value to measure the impairment charge, if any. When the criteria have been met for long-lived assets to be classified as held for sale, the assets are recorded at the lower of carrying value or fair market value (less selling costs). See additional discussion in Note 2, Acquisition, Goodwill and Other Long-Lived Assets.
Operating Leases, Policy [Policy Text Block] | Operating Leases Certain operating leases include rent increases during the initial lease term. For these leases, the Company recognizes the related rental expenses on a straight-line basis over the term of the lease, which includes any rent holiday period, and records the difference between the amounts charged to operations and amount paid as rent as a rent liability. Reserves for idle facilities are initially measured at the fair value of the portion of the lease payments associated with the vacated facilities, reduced by estimated sublease rentals. See additional discussion in Note 2, Acquisition, Goodwill and Other Long-Lived Assets.
Goodwill and Other Intangible Assets, Policy [Policy Text Block] | Goodwill and Other Intangible Assets Goodwill is recorded at cost based on the excess of purchase price over the fair value of net assets acquired. Goodwill and intangible assets with indefinite lives are not amortized but the Company conducts an annual (or more frequently if circumstances indicate possible impairment) impairment test of goodwill for each reporting unit at June 30 of each year. Other intangible assets are amortized over their useful lives. Results of impairment testing are described in Note 2, Acquisition, Goodwill and Other Long-Lived Assets. Acquisitions are accounted for using the purchase method. The definite-lived intangible assets of the Company resulting from acquisition activity and the related amortization are described in Note 2, Acquisition, Goodwill and Other Long-Lived Assets.
Software Development, Policy [Policy Text Block] | Software Development Costs related to software developed or acquired for internal use are expensed or capitalized based on the applicable stage of software development and any capitalized costs are amortized over their estimated useful life. The Company typically uses a five-year straight line amortization for the capitalized amounts of software development costs. At December 31, 2017 and 2016 the Company had $19,567 and $16,268, respectively, of capitalized software development costs included in property and equipment. Accumulated amortization on these assets was $10,874 and $10,716 at December 31, 2017 and 2016, respectively. Included in depreciation expense is amortization of capitalized software development costs. Amortization of capitalized software development for the years ended December 31, 2017, 2016 and 2015 was $1,816, $1,658 and $1,526 respectively. As of December 31, 2017 the estimated amortization expense for the next five years of capitalized software development costs is as follows:
2018 | 2,197 |
2019 | 1,878 |
2020 | 1,620 |
2021 | 1,327 |
2022 | 716 |
Total | $ | 7,738 |
Income Taxes, Policy [Policy Text Block] | Income Taxes The Company accounts for income taxes using the liability method, whereby deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to be recovered or settled. We report a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in a tax return. We recognize interest and penalties, if any, related to unrecognized tax benefits in interest expense and operating expenses, respectively. On December 22, 2017, President Trump signed into law H.R. 1, “An Act to provide for reconciliation pursuant to titles II and V of the concurrent resolution on the budget for fiscal year 2018”. Please see Note 5 for further discussion on the impact of the U.S. Tax Act.
Net Income Per Share, Policy [Policy Text Block] | Net Income Per Share The Company calculates net income per share in accordance with the FASB Accounting Standards Codification and the Hierarchy of Generally Accepted Accounting Principles, Earnings per Share (the “ASC 260”). Under the ASC 260, basic net income per share is computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding for the period. The Company's non-vested shares contain non-forfeitable rights to dividends and are therefore considered participating securities for purposes of computing net income per share pursuant to the two-class method. Net income allocated to participating securities was $700 in 2017, $212 in 2016 and $369 in 2015. Net losses are not allocated to participating securities in periods in which the Company incurs a net loss. Diluted net income per share is computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding after considering the additional dilution from any dilutive non-participating securities. The Company's non-participating securities include options and performance shares.
Share-based Payments, Policy [Policy Text Block] | Share-Based Payments The Company’s general practice has been to make a single annual grant of share-based compensation to key employees and to make other grants only in connection with new employment or promotions. In addition, the Company makes annual grants to non-employee directors in conjunction with their annual election to our Board of Directors or at the time of their appointment to the Board of Directors. For employees, the Company has granted stock options, non-vested shares and performance shares. For non-employee directors, the Company has generally issued non-vested shares. Stock options typically expire seven years from the grant date and vest ratably over a three-year period. The share-based compensation for stock options is recognized ratably over the requisite service period, or vesting period. The Company uses the Black-Scholes option-pricing model to estimate the grant-date fair value of options granted. The following table contains the weighted-average assumptions used to estimate the fair value of options granted. These assumptions are subjective and changes in these assumptions can materially affect the fair value estimate.
| December 31, 2017 |  | December 31, 2016 |  | December 31, 2015
Expected dividend yield | 1.3 | % |  | 1.0 | % |  | 1.0 | %
Expected stock price volatility | 28.5 | % |  | 28.9 | % |  | 33.3 | %
Weighted average risk-free interest rate | 2.0 | % |  | 1.3 | % |  | 1.6 | %
Expected life of options (years) | 5.9 |  |  | 5.8 |  |  | 5.9 |
The fair value of non-vested shares issued were estimated using the closing market prices for the business day of the grant. The share-based compensation for the non-vested shares is recognized ratably over the requisite service period or vesting period. The fair value of the performance shares was estimated using a Monte Carlo simulation. The share-based compensation for performance shares are recognized ratably over the requisite service period, or vesting period. The following table contains the weighted-average assumptions used to estimate the fair value of performance shares granted. These assumptions are subjective and changes in these assumptions can materially affect the fair value estimate.
|  |  | Year ended |  |
| December 31, 2017 |  | December 31, 2016 |  | December 31, 2015
Expected stock price volatility | 24.7 | % |  | 22.3 | % |  | 23.5 | %
Weighted average risk-free interest rate | 1.4 | % |  | 0.8 | % |  | 1.0 | %
Under the 2005 Employee Stock Purchase Plan (the “ESPP”), the Company is authorized to issue shares of Common Stock to eligible employees. These shares may be issued at a price equal to 90% of the lesser of the market value on the first day or the last day of each six-month purchase period. Common Stock purchases are paid for through periodic payroll deductions and/or up to two large lump sum contributions. The Company recognizes share-based compensation on the date of purchase based on the difference between the purchase date fair market value and the employee purchase price.

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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6375392&loc=d3e26790-107797 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 + Details
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- Definition Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66092785&loc=d3e4492-108314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=66092785&loc=d3e4556-108314 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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- Definition Disclosure of accounting policy for its research and development and computer software activities including the accounting treatment for costs incurred for (1) research and development activities, (2) development of computer software for internal use, (3) computer software to be sold, leased or otherwise marketed as a separate product or as part of a product or process and (4) in-process research and development acquired in a purchase business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Research and Development -URI http://asc.fasb.org/extlink&oid=6523717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 40 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6389767&loc=d3e17916-109280 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.15) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 50 -Section 25 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=16397303&loc=d3e19347-109286 + Details
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- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68058157&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6061-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6143-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6132-108592 + Details
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