Knight Transportation 10-Q 12 Nov 13 2013 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 23, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Knight Transportation Inc	'
Document Type	'10-Q	'
Current Fiscal Year End Date	'--12-31	'
Entity Common Stock, Shares Outstanding	'	80,082,626
Amendment Flag	'false	'
Entity Central Index Key	'0000929452	'
Entity Current Reporting Status	'Yes	'
Entity Voluntary Filers	'No	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Well-known Seasoned Issuer	'Yes	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'

Condensed_Consolidated_Unaudit

Condensed Consolidated Unaudited Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and cash equivalents	$5,281	$5,684
Trade receivables, net of allowance for doubtful accounts	117,306	102,553
Notes receivable, net of allowance for doubtful accounts	714	791
Related party notes and interest receivable	1,497	2,814
Prepaid expenses	16,245	17,035
Assets held for sale	14,520	18,362
Other current assets	11,496	12,449
Income tax receivable	1,343	0
Current deferred tax assets	3,161	3,409
Total current assets	171,563	163,097
Revenue equipment	683,958	681,864
Land and land improvements	41,023	38,979
Buildings and improvements	114,042	100,158
Furniture and fixtures	17,315	15,953
Shop and service equipment	9,099	9,065
Leasehold improvements	3,207	2,989
Gross property and equipment	868,644	849,008
Less: accumulated depreciation and amortization	-281,652	-264,944
Property and equipment, net	586,992	584,064
Notes receivable, net of current portion	3,812	3,692
Goodwill	10,262	10,276
Other long-term assets and restricted cash	32,499	21,383
Total assets	805,128	782,512
LIABILITIES AND SHAREHOLDERS' EQUITY	'	'
Accounts payable	21,201	11,281
Accrued payroll and purchased transportation	15,011	10,489
Accrued liabilities	17,998	16,020
Claims accrual – current portion	15,135	15,892
Dividend payable – current portion	158	141
Total current liabilities	69,503	53,823
Claims accrual – long-term portion	9,320	10,340
Long-term dividend payable and other liabilities	2,388	2,638
Deferred tax liabilities	140,195	144,871
Long-term debt	52,000	80,000
Total long-term liabilities	203,903	237,849
Total liabilities	273,406	291,672
Commitments and Contingencies (Note 6)	'	'
Preferred stock, $0.01 par value; 50,000 shares authorized; none issued and outstanding	0	0
Common stock, $0.01 par value; 300,000 shares authorized; 80,080 and 79,760 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	801	798
Additional paid-in capital	147,767	142,837
Accumulated other comprehensive income (loss)	1,613	-302
Retained earnings	380,868	346,899
Total Knight Transportation shareholders' equity	531,049	490,232
Noncontrolling interest	673	608
Total shareholders’ equity	531,722	490,840
Total liabilities and shareholders' equity	$805,128	$782,512

Condensed_Consolidated_Unaudit1

Condensed Consolidated Unaudited Balance Sheets (Parentheticals) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified
Preferred stock, par value (in Dollars per share)	$0.01	$0.01
Preferred stock, shares authorized	50,000	50,000
Preferred stock,shares issued	0	0
Common stock, par value (in Dollars per share)	$0.01	$0.01
Common stock, shares authorized	300,000	300,000
Common stock, shares issued	80,080	79,760
Common stock, shares outstanding	80,080	79,760

Condensed_Consolidated_Unaudit2

Condensed Consolidated Unaudited Statements of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
REVENUE:	'	'	'	'
Revenue, before fuel surcharge	$195,847	$192,550	$585,551	$556,987
Fuel surcharge	43,491	45,383	133,970	136,746
Total revenue	239,338	237,933	719,521	693,733
OPERATING EXPENSES:	'	'	'	'
Salaries, wages and benefits	60,097	58,175	174,558	178,220
Fuel	54,338	59,474	162,770	173,398
Operations and maintenance	17,088	16,107	48,916	44,921
Insurance and claims	7,190	7,783	21,640	23,709
Operating taxes and licenses	3,752	3,929	11,645	12,004
Communications	1,244	1,206	3,616	3,873
Depreciation and amortization	21,981	21,825	64,578	63,130
Purchased transportation	45,603	39,090	138,278	107,014
Miscellaneous operating expenses	3,771	2,577	11,777	7,761
Total operating expenses	215,064	210,166	637,778	614,030
Income from operations	24,274	27,767	81,743	79,703
Interest income	89	96	294	317
Interest expense	-91	-115	-310	-357
Other income	971	36	1,024	430
Income before income taxes	25,243	27,784	82,751	80,093
Income taxes	10,090	11,114	33,100	33,394
Net income	15,153	16,670	49,651	46,699
Net income attributable to noncontrolling interest	-94	-86	-470	-281
Net income attributable to Knight Transportation	$15,059	$16,584	$49,181	$46,418
Basic Earnings Per Share (in Dollars per share)	$0.19	$0.21	$0.62	$0.58
Diluted Earnings Per Share (in Dollars per share)	$0.19	$0.21	$0.61	$0.58
Weighted Average Shares Outstanding - Basic (in Shares)	80,048	79,726	79,948	79,648
Weighted Average Shares Outstanding – Diluted (in Shares)	80,395	79,970	80,250	80,015

Condensed_Consolidated_Unaudit3

Condensed Consolidated Unaudited Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income attributable to Knight Transportation	$15,059	$16,584	$49,181	$46,418
Other comprehensive income, net of tax: Unrealized gain from available-for-sale securities	1,864	121	1,915	171
Comprehensive income	$16,923	$16,705	$51,096	$46,589

Condensed_Consolidated_Unaudit4

Condensed Consolidated Unaudited Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Net income	$49,651	$46,699
Depreciation and amortization	64,578	63,130
Gain on sale of equipment	-4,992	-6,892
Gain from sale of available for sale securities	-902	-61
(Gain) loss from investment in Transportation Resource Partners III, LP	-130	59
Compensation expense for issuance of common stock to certain members of board of directors	168	149
Provision for doubtful accounts and notes receivable	723	566
Excess tax benefits related to stock-based compensation	0	-81
Stock-based compensation expense	1,962	5,808
Deferred income taxes	-5,611	-3,131
Trade receivables	-15,395	-6,442
Other current assets	953	-3,204
Prepaid expenses	790	-9,539
Income tax receivable	-1,343	3,821
Other long-term assets	-852	79
Accounts payable	7,338	5,578
Accrued liabilities and claims accrual	3,777	10,139
Net cash provided by operating activities	100,715	106,678
Purchases of property and equipment	-96,295	-116,162
Proceeds from sale of equipment/assets held for sale	39,144	30,260
Proceeds from notes receivable	1,944	1,380
Payments for notes receivable	-511	-33
Proceeds from related party notes receivable	822	54
Decrease (increase) in restricted cash	339	-65
Proceeds from sale of available-for-sale securities	6,056	113
Purchase of available-for-sale securities	-9,559	0
Investment in Transportation Resources Partnership III, LP	-2,969	-2,077
Return of investment in Transportation Resources Partnership III, LP	12	0
Net cash used in investing activities	-61,017	-86,530
Dividends paid	-14,625	-14,473
Proceeds from line of credit borrowings	32,000	0
Payments on line of credit borrowings	-60,000	-10,000
Excess tax benefits related to stock-based compensation	'	81
Cash distribution to noncontrolling interest holder	-405	-430
Proceeds from exercise of stock options	2,929	3,321
Net cash used in financing activities	-40,101	-21,501
Net decrease in Cash and Cash Equivalents	-403	-1,353
Cash and Cash Equivalents, beginning of period	5,684	9,584
Cash and Cash Equivalents, end of period	5,281	8,231
Equipment acquired included in accounts payable	4,786	8,496
Transfer from property and equipment to assets held for sale	28,458	25,080
Transfer from related party notes receivable to notes receivable	403	0
Financing provided to independent contractors for equipment sold	1,185	884
Dividend accrued for restricted stock units	134	203
Income taxes paid	42,862	30,007
Interest expense paid	$296	$360

Note_1_Financial_Information

Note 1 - Financial Information	9 Months Ended
	Sep. 30, 2013
Disclosure Text Block [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	'
	Note 1.                 Financial Information
	References in this Report on Form 10-Q to "we," "us," "our," "Knight," or the "Company" or similar terms refer to Knight Transportation, Inc. and its consolidated subsidiaries. All inter-company balances and transactions have been eliminated in consolidation.
	The accompanying condensed consolidated unaudited financial statements of Knight Transportation, Inc. and its subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States of America and Regulation S-X, instructions to Form 10-Q, and other relevant rules and regulations of the Securities and Exchange Commission (the "SEC"), as applicable to the preparation and presentation of interim financial information. Certain information and footnote disclosures have been omitted or condensed pursuant to such rules and regulations. We believe all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Results of operations in interim periods are not necessarily indicative of results for a full year. These condensed consolidated unaudited financial statements and notes thereto should be read in conjunction with our consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2012.

Note_2_StockBased_Compensation

Note 2 - Stock-Based Compensation	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	Note 2.                 Stock-Based Compensation
	On May 17, 2012, our shareholders approved the 2012 Equity Compensation Plan, effective May 18, 2012. This replaces the stock-based employee compensation plan known as the Knight Transportation, Inc. Amended and Restated 2003 Stock Option and Equity Compensation Plan, as amended and restated in May 2009 (the "2003 Plan"). Grants outstanding under the 2003 Plan will continue in force and effect. Any grants of stock-based compensation after May 18, 2012, are made under the 2012 Equity Compensation Plan. Stock based compensation cost for the three months, and nine months ended September 30, 2013, and 2012, respectively, are as follows:
			Three Months Ended					Nine Months Ended
			September 30,					September 30,
			(in thousands)					(in thousands)
			2013			2012		2013		2012
	Stock compensation expense for options, net of forfeitures		$	115		$	13	$	246	$	4,103
	Stock compensation expense for restricted stock units, net of forfeitures			614			489		1,716		1,705
	Combined stock compensation expense		$	729		$	502	$	1,962	$	5,808
	In the first quarter of 2012, the compensation committee of the board of directors approved the accelerated vesting of certain stock options issued prior to 2009, resulting in approximately $4.0 million of pre-tax stock compensation expense ($3.9 million after tax) in that quarter.
	We received approximately $0.9 million and $2.9 million in cash from the exercise of stock options during the three months and nine months ended September 30, 2013, compared to $0.1 million and $3.3 million for the same periods in 2012.
	As of September 30, 2013, we have approximately $1.3 million of unrecognized compensation cost related to unvested options granted under our equity compensation plan. This cost is expected to be recognized over a weighted-average period of 2.3 years and a total period of 4.2 years. We also have approximately $16.0 million of unrecognized compensation expense related to restricted stock unit awards, which is anticipated to be recognized over a weighted average period of 4.6 years and a total period of 9.3 years.
	The fair value of each option grant is estimated on the date of grant using the Black-Scholes option valuation model that uses the following assumptions:
		●	Dividend yield – the dividend yield is based on our historical experience and future expectation of dividend payouts.
		●	Expected volatility – we analyzed the volatility of our stock using historical data.
		●	Risk-free interest rate – the risk-free interest rate assumption is based on U.S. Treasury securities at a constant maturity with a maturity period that most closely resembles the expected term of the stock option award.
		●	Expected term – the expected term of employee stock options represents the weighted-average period the stock options are expected to remain outstanding and has been determined based on an analysis of historical exercise behavior.
	A total of 429,800 stock options were granted during the first nine months of 2013 and no options were granted during the first nine months of 2012. A summary of the option award activity under our equity compensation plan as of September 30, 2013, and changes during the nine-month period is presented below:
			Option Totals			Weighted Average Exercise
						Price Per Share
	Outstanding as of December 31, 2012			3,424,806		$	15.99
	Granted			429,800			15.62
	Exercised			(232,068	)		12.62
	Forfeited			(103,723	)		16.77
	Outstanding as of September 30, 2013			3,518,815		$	16.15
	A total of 163,111 and 52,000 restricted stock unit awards were granted during the first nine months of 2013 and 2012, respectively. A summary of the restricted stock unit award activity under our equity compensation plan as of September 30, 2013, and changes during the nine-month period is presented below:
			Number of Restricted Stock Unit Awards			Weighted Average Grant Date Fair Value
	Unvested as of December 31, 2012			1,210,532		$	16.04
	Granted			163,111			15.71
	Vested			(120,115	)		16.09
	Forfeited			(48,160	)		15.75
	Unvested as of September 30, 2013			1,205,368		$	16
	The fair value of each restricted stock unit is based on the closing market price on the date of grant.

Note_3_Earnings_Per_Share

Note 3 - Earnings Per Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	Note 3.                 Earnings Per Share
	A reconciliation of the basic and diluted earnings per share computations for the three months and nine months ended September 30, 2013 and 2012, respectively, is as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
		(in thousands, except per share data)
	Weighted average common shares outstanding – basic		80,048		79,726		79,948		79,648
	Dilutive effect of stock options and unvested restricted stock units		347		244		302		367
	Weighted average common shares outstanding – diluted		80,395		79,970		80,250		80,015
	Net income attributable to Knight Transportation	$	15,059	$	16,584	$	49,181	$	46,418
	Basic Earnings Per Share	$	0.19	$	0.21	$	0.62	$	0.58
	Diluted Earnings per Share	$	0.19	$	0.21	$	0.61	$	0.58
	Certain shares of common stock were excluded from the computation of diluted earnings per share because the options' exercise prices were greater than the average market price of the common shares, and therefore, the effect would be anti-dilutive. A summary of those options are as follows:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Number of anti-dilutive shares		1,811,212		2,916,442		1,669,552		1,925,019

Note_4_Segment_Information

Note 4 - Segment Information	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment Reporting Disclosure [Text Block]	'
	Note 4.                 Segment Information
	We are a provider of multiple truckload transportation and logistics services using a nationwide network of service centers in the United States to serve customers throughout North America.  In addition to operating our large tractor fleet we also contract with third-party equipment providers to provide a broad range of truckload services to our customers. We have five operating segments comprised of three asset-based operating segments (dry van truckload, temperature-controlled truckload, and drayage services) and two non-asset-based operating segments (brokerage and intermodal services). Through our asset-based and non-asset-based capabilities we are able to transport, or can arrange for the transportation of, general commodities for customers throughout the United States and parts of Canada and Mexico.
	Based on the guidance set forth in Accounting Standards Codification ("ASC") Sub-Topic 280-10, Segment Reporting, we have determined we have one reportable segment. All five operating segments meet all of the aggregation criteria set forth in the guidance. Based on our evaluation, we also concluded that all operating segments exhibit similar long-term economic characteristics, have similar performance indicators, and are exposed to the same competitive, operating, financial, and other risk factors.

Note_5_Joint_Venture

Note 5 - Joint Venture	9 Months Ended
	Sep. 30, 2013
Joint Venture [Abstract]	'
Joint Venture [Text Block]	'
	Note 5.                 Joint Venture
	In 2010, we partnered with a non-related investor to form an Arizona limited liability company for the purpose of sourcing commercial vehicle parts. We contributed $26,000 to acquire 52% ownership of this entity. In accordance with ASC 810-10-15-8, Consolidation, we consolidate the financial activities of this entity into our consolidated financial statements. The noncontrolling interest for this entity is presented as a separate component of our consolidated financial statements.

Note_6_Commitments_and_Conting

Note 6 - Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
	Note 6.                 Commitments and Contingencies
	We are a party to certain claims and pending litigation arising in the normal course of business.  These proceedings primarily involve claims for personal injury or property damage incurred in the transportation of freight or for personnel matters, as well as certain class action litigation in which plaintiffs allege failure to provide meal and rest breaks, unpaid wages, unauthorized deductions, and other items.
	We maintain insurance to cover liabilities arising from the transportation of freight in amounts in excess of self-insurance retentions.  Our self-insurance retention ("SIR") for auto liability ranges from $1.0 million to $3.0 million per occurrence depending on the applicable policy year. For the policy year February 1, 2012 to January 31, 2013, our SIR was $2.0 million with an additional $1.0 million responsibility for additional "aggregate" losses. For the policy period February 1, 2013 to January 31, 2014, our SIR is $3.0 million with no responsibility for "aggregate" losses. We are also self-insured for workers' compensation coverage, with a self-retention level of a maximum $500,000 per occurrence. We establish reserves to cover these self-insured liabilities and maintain insurance to cover liabilities in excess of those amounts. Our insurance policies provide for excess personal injury and property damage liability up to a total of $55.0 million per occurrence, which also includes a separate $2.5 million dollar aggregate deductible.
	Based on claims resolved this quarter, and our present knowledge of the facts and, in certain cases, advice of outside counsel, management believes the resolution of open claims and pending litigation, taking into account existing reserves, is not likely to have a materially adverse effect on us.

Note_7_Dividends

Note 7 - Dividends	9 Months Ended
	Sep. 30, 2013
Common Stock Dividends [Abstract]	'
Common Stock Dividends [Text Block]	'
	Note 7.                 Dividends
	On August 8, 2013, we declared a cash dividend of $0.06 per share of our common stock. The dividend was payable to shareholders of record on September 6, 2013, and was paid on September 25, 2013. Future payment of cash dividends, and the amount of any such dividends, will depend upon our financial condition, results of operations, cash requirements, tax treatment, and certain corporate law requirements, as well as other factors deemed relevant by our Board of Directors.

Note_8_Property_and_Equipment

Note 8 - Property and Equipment	9 Months Ended
	Sep. 30, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment Disclosure [Text Block]	'
	Note 8.                 Property and Equipment
	To ensure that our facilities remain modern and efficient, we periodically have facility upgrades, or new construction, in process at our various service center or corporate headquarters locations. Until these projects are completed, we consider these to be assets not yet placed in service and they are not depreciated. Once they are placed into service, we depreciate them according to our depreciation policy. At September 30, 2013 and December 31, 2012, we had $17.9 million and $14.1 million, respectively, of assets not yet placed in service included with “buildings and improvements” on the accompanying consolidated balance sheets.

Note_9_Goodwill

Note 9 - Goodwill	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets Disclosure [Text Block]	'
	Note 9.                 Goodwill
	Goodwill represents the excess of the purchase price of our acquisitions over the fair value of the net assets acquired. The tax benefit from the recognition on the tax return of the amortization of the excess tax goodwill over book goodwill is treated as a reduction in the book basis of goodwill. The changes in the carrying amount of goodwill for the nine months ended September 30, 2013, is as follows:
		In Thousands
	Goodwill at December 31, 2012	$	10,276
	Amortization relating to deferred tax assets		(14	)
	Goodwill at September 30, 2013	$	10,262

Note_10_Investments_and_Relate

Note 10 - Investments and Related Commitments	9 Months Ended
	Sep. 30, 2013
Investments Schedule [Abstract]	'
Investment [Text Block]	'
	Note 10.               Investments and Related Commitments
	In 2003, we signed a partnership agreement with Transportation Resource Partners (“TRP”), a company that makes privately negotiated equity investments. Per the original partnership agreement, we committed to invest $5.0 million in TRP. In 2006, we increased the commitment amount to $5.5 million. At September 30, 2013, the carrying value of our investment in TRP was $2.2 million.
	In the fourth quarter of 2008, we formed Knight Capital Growth, LLC and committed $15.0 million to invest in a new partnership managed and operated by the managers and principals of TRP. The new partnership, Transportation Resource Partners III, LP ("TRP III"), is focused on similar investment opportunities as TRP. As of September 30, 2013, we have contributed approximately $10.5 million to TRP III, leaving an outstanding commitment of $4.5 million.

Note_11_Marketable_Equity_Secu

Note 11 - Marketable Equity Securities	9 Months Ended
	Sep. 30, 2013
Table Text Block [Abstract]	'
Marketable Securities [Table Text Block]	'
	Note 11.               Marketable Equity Securities
	We have certain marketable equity securities classified as available-for-sale securities, which are recorded at fair value with unrealized gains and losses, net of tax, as a component of "Accumulated other comprehensive income" in shareholders' equity. Realized gains and losses on available-for-sale securities are included in the determination of net income. As of September 30, 2013, our available-for-sale equity investment included in "Other long-term assets and restricted cash" was approximately $13.9 million, including gross unrealized gains of approximately $2.6 million, or $1.6 million (net of tax).
	During the quarter ended September 30, 2013, we made public statements regarding our intent to acquire all of the outstanding shares of common stock of USA Truck and that our discussions with USA Truck regarding a combination of us and USA Truck have been unsuccessful to date. To help achieve our stated objective, we have made purchases of USA Truck common stock in the open market and in private transactions. Our investment in USA Truck common stock is classified as available-for-sale securities and totaled $11.2 million as of September 30, 2013.

Note_12_Assets_Held_for_Sale

Note 12 - Assets Held for Sale	9 Months Ended
	Sep. 30, 2013
Disclosure Text Block Supplement [Abstract]	'
Other Assets Disclosure [Text Block]	'
	Note 12.               Assets Held for Sale
	Revenue equipment that is not utilized in continuing operations and is held for sale is classified as "Assets held for sale" on the accompanying consolidated balance sheets. Assets held for sale at September 30, 2013 and December 31, 2012, totaled $14.5 million and $18.4 million, respectively. Assets held for sale are no longer subject to depreciation, and are recorded at the lower of depreciated carrying value or fair market value less selling costs. We expect to sell these assets and replace them with new assets within twelve months of being classified as “Assets held for sale”.

Note_13_Income_Taxes

Note 13 - Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Tax Disclosure [Text Block]	'
	Note 13.               Income Taxes
	We account for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. For interim reporting purposes, our income tax provisions are recorded based on the estimated annual effective tax rate. Under this method, deferred tax assets and liabilities are determined based on the difference between the financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date.
	We record net deferred tax assets to the extent we believe these assets will more likely than not be realized. In making such determination, we consider all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies, and recent financial operations. A valuation allowance for deferred tax assets has not been deemed necessary due to our profitable operations.
	We recognize a tax benefit from an uncertain tax position when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits. We file U.S. and state income tax returns with varying statutes of limitations. The 2009 through 2012 tax years generally remain subject to examination by federal authority, and the 2008 through 2012 tax years generally remain subject to examination by state tax authorities. We believe that our income tax filing positions and deductions will be sustained on audit and do not anticipate any adjustments that will result in a material change to our consolidated financial position, results of operations and cash flows. Our policy is to recognize interest and penalties related to unrecognized tax benefits as income tax expense. We have not recorded any unrecognized tax benefits at September 30, 2013 or December 31, 2012.

Note_14_Company_Share_Repurcha

Note 14 - Company Share Repurchase Programs	9 Months Ended
	Sep. 30, 2013
Disclosure Text Block Supplement [Abstract]	'
Treasury Stock [Text Block]	'
	Note 14.               Company Share Repurchase Programs
	On November 13, 2008, our Board of Directors unanimously authorized the repurchase of up to 3.0 million shares of our common stock. As of December 31, 2010, there were 2,020,956 shares remaining under the 2008 authorization. On May 19, 2011, our Board of Directors unanimously authorized the repurchase of an additional 10.0 million shares of the Company's common stock. The repurchase authorization is intended to afford flexibility to acquire shares opportunistically in future periods and does not indicate an intention to repurchase any particular number of shares within a definite timeframe. Any repurchases would be effected based upon share price and market conditions.
	We did not purchase any shares in either of the nine months ended September 30, 2013 or 2012, and as of September 30, 2013, there were 7,438,556 shares remaining for future purchases under our repurchase program. The repurchase authorization will remain in effect until the share limit is reached or the programs are terminated.

Note_15_Fair_Value_Measurement

Note 15 - Fair Value Measurements	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Disclosures [Text Block]	'
	Note 15.               Fair Value Measurements
	Our assets and liabilities measured at fair value are based on principles set forth in ASC 820-10, Fair Value Measurements and Disclosure, for non-recurring fair value measurements of non-financial assets and liabilities. This standard defines fair value, establishes a framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurements. This standard establishes a three-level hierarchy for fair value measurements based upon the significant inputs used to determine fair value. Observable inputs are those, which are obtained from market participants external to the Company while unobservable inputs are generally developed internally, utilizing management's estimates, assumptions, and specific knowledge of the nature of the assets or liabilities and related markets. The three levels are defined as follows:
	Level 1 – Inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. An active market is defined as a market in which transactions for the assets or liabilities occur with sufficient frequency and volume to provide pricing information on an ongoing basis.
	Level 2 – Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active (markets with few transactions), inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data correlation or other means (market corroborated inputs).
	Level 3 – Unobservable inputs, only used to the extent that observable inputs are not available, reflect the Company's assumptions about the pricing of an asset or liability.
	In accordance with the fair value hierarchy described above, the following table shows the fair value of our financial assets and liabilities that are required to be measured at fair value as of September 30, 2013 and December 31, 2012.
		Total		Total		Level One				Level Two				Level Three
		Balance at		Balance at		Balance at		Balance at		Balance at		Balance at		Balance at		Balance at
		September		31-Dec-12		September		31-Dec-12		September		31-Dec-12		September		31-Dec-12
		30, 2013				30, 2013				30, 2013				30, 2013
		(in thousands)
	Assets:
	Available-for-sale Securities:
	Equity securities- common shares	$	13,870	$	6,369	$	13,870	$	6,369		0		0		0		0
	Restricted cash and investments:
	Money market funds	$	1,363	$	1,231	$	1,363	$	1,231		0		0		0		0
	Trading Securities:
	Debt securities- municipal securities	$	2,246	$	2,716		0		0	$	2,246	$	2,716		0		0

Note_16_Notes_Receivable

Note 16 - Notes Receivable	9 Months Ended
	Sep. 30, 2013
Notes Receivable [Abstract]	'
Notes Receivable [Text Block]	'
	Note 16.              Notes Receivable
	We provide financing to independent contractors and third parties on equipment sold or leased under our equipment sale program. Most of the notes are collateralized and are due in weekly installments, including principal and interest payments generally ranging from 2% to 24%. We had 112 and 126 loans outstanding from independent contractors and third parties as of September 30, 2013 and December 31, 2012, respectively.
	The notes receivable balances are classified separately between current and long-term on the accompanying consolidated balance sheets. The current and long-term balance of our notes receivable at September 30, 2013 and December 31, 2012, are as follows:
		September 30,			31-Dec-12
		2013
		(in thousands)
	Notes receivable from independent contractors	$	462		$	605
	Notes receivable from third parties		4,373			4,169
	Gross notes receivable		4,835			4,774
	Allowance for doubtful notes receivable		(309	)		(291	)
	Total notes receivable, net of allowance		4,526			4,483
	Current portion, net of allowance		714			791
	Long-term portion	$	3,812		$	3,692

Note_17_Related_Party_Transact

Note 17 - Related Party Transactions	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions Disclosure [Text Block]	'
	Note 17.               Related Party Transactions
	We have provided general business loans to US West Agriculture Exporters, LLC, (“USW”) a company that transacts business with our drayage operation, and in which Larry Knight is a 33% owner. Larry Knight is an employee of the Company and the brother of Kevin Knight and Keith Knight, our Chief Executive Officer and Chief Operating Officer, respectively. The loan balance including interest due from USW at September 30, 2013, was approximately $1.5 million, compared to approximately $2.8 million at December 31, 2012. The principal loan and interest balance is recorded in "Related party notes and interest receivable" on our consolidated balance sheets. We also provided transportation services to USW through December 31, 2010. Transportation services provided to USW have been paid in full. USW discontinued operations as of December 31, 2010. The loan to USW is secured by guaranties of the members of USW. We are currently working with USW regarding the repayment of the outstanding balance of the loan and have received a court judgment protecting our rights in the assets of USW. Management believes it will recover the entire outstanding principal balance of the loan.

Note_18_Line_of_Credit

Note 18 - Line of Credit	9 Months Ended
	Sep. 30, 2013
Disclosure Text Block [Abstract]	'
Long-term Debt [Text Block]	'
	Note 18.               Line of Credit
	We have maintained a revolving line of credit with Wells Fargo Bank, which permitted revolving borrowings and letters of credit up to $150.0 million, with a maturity date of July 2016, bearing interest at either the prime rate, or LIBOR plus 0.625%, determined by us at the time of borrowing. On October 21, 2013, we increased this limit to $300.0 million from $150.0 million, and going forward it will bear interest at either the prime rate, or LIBOR plus 0.750%, determined by us at the time of borrowing, and have a maturity date of October 21, 2016. We had $52.0 million of debt outstanding under the line of credit as of September 30, 2013, compared to $80.0 million at December 31, 2012. The weighted average variable annual percentage rate (APR) for amounts borrowed over the nine-month period ended September 30, 2013, was 0.94%. Borrowing under the line of credit is recorded in the "Long-term debt" line of the consolidated balance sheets. In connection with our self-insurance program, we also utilized $24.0 million of the line of credit for letters of credit issued to various regulatory authorities. Considering the increase in the line of credit limit noted above, we now have $224.0 million available for future borrowings. We are obligated to comply with certain financial and other covenants under the line of credit agreement and, except as described below, we were in compliance at September 30, 2013 and December 31, 2012. At September 30, 2013, the aggregate amount of our assets classified as investments, loans or advances by our line of credit agreement exceeded the limit of $30.0 million. On October 10, 2013, our lender issued a letter waiving its rights with respect to any default resulting from our non-compliance with this covenant. Also, on October 21, 2013, this aggregate limit was increased from $30.0 million to $50.0 million.

Note_19_Recent_Accounting_Pron

Note 19 - Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2013
New Accounting Pronouncement or Change in Accounting Principle, Description [Abstract]	'
New Accounting Pronouncement or Change in Accounting Principle, Description	'
	Note 19.               Recent Accounting Pronouncements
	In February 2013, the FASB issued ASU No. 2013-02 "Other Comprehensive Income (ASC 220): Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income” (“ASU 2013-02”). This ASU intends to improve the reporting of reclassifications out of accumulated other comprehensive income by requiring an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required under U.S. generally accepted accounting principles (“U.S. GAAP”) to be reclassified in its entirety to net income. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other disclosures required under U.S. GAAP that provide additional detail about those amounts. The new guidance was effective for fiscal years beginning after December 15, 2012.  The amendments do not change the current requirements for reporting net income or other comprehensive income in financial statements and the adoption of this guidance has not had a material impact on our consolidated financial statements.

Note_2_StockBased_Compensation1

Note 2 - Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	'
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		(in thousands)					(in thousands)
		2013			2012		2013		2012
	Stock compensation expense for options, net of forfeitures	$	115		$	13	$	246	$	4,103
	Stock compensation expense for restricted stock units, net of forfeitures		614			489		1,716		1,705
	Combined stock compensation expense	$	729		$	502	$	1,962	$	5,808
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	'
		Option Totals			Weighted Average Exercise
					Price Per Share
	Outstanding as of December 31, 2012		3,424,806		$	15.99
	Granted		429,800			15.62
	Exercised		(232,068	)		12.62
	Forfeited		(103,723	)		16.77
	Outstanding as of September 30, 2013		3,518,815		$	16.15
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]	'
		Number of Restricted Stock Unit Awards			Weighted Average Grant Date Fair Value
	Unvested as of December 31, 2012		1,210,532		$	16.04
	Granted		163,111			15.71
	Vested		(120,115	)		16.09
	Forfeited		(48,160	)		15.75
	Unvested as of September 30, 2013		1,205,368		$	16

Note_3_Earnings_Per_Share_Tabl

Note 3 - Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
		(in thousands, except per share data)
	Weighted average common shares outstanding – basic		80,048		79,726		79,948		79,648
	Dilutive effect of stock options and unvested restricted stock units		347		244		302		367
	Weighted average common shares outstanding – diluted		80,395		79,970		80,250		80,015
	Net income attributable to Knight Transportation	$	15,059	$	16,584	$	49,181	$	46,418
	Basic Earnings Per Share	$	0.19	$	0.21	$	0.62	$	0.58
	Diluted Earnings per Share	$	0.19	$	0.21	$	0.61	$	0.58
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Number of anti-dilutive shares		1,811,212		2,916,442		1,669,552		1,925,019

Note_9_Goodwill_Tables

Note 9 - Goodwill (Tables)	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill [Table Text Block]	'
		In Thousands
	Goodwill at December 31, 2012	$	10,276
	Amortization relating to deferred tax assets		(14	)
	Goodwill at September 30, 2013	$	10,262

Note_15_Fair_Value_Measurement1

Note 15 - Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value, Measurement Inputs, Disclosure [Text Block]	'
		Total		Total		Level One				Level Two				Level Three
		Balance at		Balance at		Balance at		Balance at		Balance at		Balance at		Balance at		Balance at
		September		31-Dec-12		September		31-Dec-12		September		31-Dec-12		September		31-Dec-12
		30, 2013				30, 2013				30, 2013				30, 2013
		(in thousands)
	Assets:
	Available-for-sale Securities:
	Equity securities- common shares	$	13,870	$	6,369	$	13,870	$	6,369		0		0		0		0
	Restricted cash and investments:
	Money market funds	$	1,363	$	1,231	$	1,363	$	1,231		0		0		0		0
	Trading Securities:
	Debt securities- municipal securities	$	2,246	$	2,716		0		0	$	2,246	$	2,716		0		0

Note_16_Notes_Receivable_Table

Note 16 - Notes Receivable (Tables)	9 Months Ended
	Sep. 30, 2013
Notes Receivable [Abstract]	'
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	'
		September 30,			31-Dec-12
		2013
		(in thousands)
	Notes receivable from independent contractors	$	462		$	605
	Notes receivable from third parties		4,373			4,169
	Gross notes receivable		4,835			4,774
	Allowance for doubtful notes receivable		(309	)		(291	)
	Total notes receivable, net of allowance		4,526			4,483
	Current portion, net of allowance		714			791
	Long-term portion	$	3,812		$	3,692

Note_2_StockBased_Compensation2

Note 2 - Stock-Based Compensation (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2012	Sep. 30, 2013	Sep. 30, 2012
Note 2 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'	'
Pre-tax Stock Compensation Charge	'	'	$4,000,000	'	'
After-tax Stock Compensation Charge	'	'	3,900,000	'	'
Proceeds from Stock Options Exercised	900,000	100,000	'	2,929,000	3,321,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	1,300,000	'	'	1,300,000	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)	'	'	'	429,800	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)	'	'	'	163,111	52,000
Restricted Stock Units (RSUs) [Member] | Weighted-Average Period [Member]	'	'	'	'	'
Note 2 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'	'	'4 years 219 days	'
Restricted Stock Units (RSUs) [Member] | Total Period [Member]	'	'	'	'	'
Note 2 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'	'	'9 years 109 days	'
Restricted Stock Units (RSUs) [Member]	'	'	'	'	'
Note 2 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$16,000,000	'	'	$16,000,000	'
Weighted-Average Period [Member]	'	'	'	'	'
Note 2 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'	'	'	'2 years 109 days	'
Total Period [Member]	'	'	'	'	'
Note 2 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'	'	'	'4 years 73 days	'

Note_2_StockBased_Compensation3

Note 2 - Stock-Based Compensation (Details) - Stock-Based Compensation Cost (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock-Based Compensation Cost [Abstract]	'	'	'	'
Stock compensation expense for options, net of forfeitures	$115	$13	$246	$4,103
Stock compensation expense for restricted stock units, net of forfeitures	614	489	1,716	1,705
Combined stock compensation expense	$729	$502	$1,962	$5,808

Note_2_StockBased_Compensation4

Note 2 - Stock-Based Compensation (Details) - A Summary of the Option Award Activity Under Our Equity Compensation Plan (USD $)	9 Months Ended
	Sep. 30, 2013
A Summary of the Option Award Activity Under Our Equity Compensation Plan [Abstract]	'
Outstanding as of December 31, 2012	3,424,806
Outstanding as of December 31, 2012 (in Dollars per share)	$15.99
Granted (in Dollars per share)	$15.62
Granted	429,800
Exercised	-232,068
Exercised (in Dollars per share)	$12.62
Forfeited	-103,723
Forfeited (in Dollars per share)	$16.77
Outstanding as of September 30, 2013	3,518,815
Outstanding as of September 30, 2013 (in Dollars per share)	$16.15

Note_2_StockBased_Compensation5

Note 2 - Stock-Based Compensation (Details) - A Summary of the Restricted Stock Unit Award Activity Under Our Equity Compensation Plan (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
A Summary of the Restricted Stock Unit Award Activity Under Our Equity Compensation Plan [Abstract]	'	'
Unvested as of December 31, 2012	1,210,532	'
Unvested as of December 31, 2012 (in Dollars per share)	$16.04	'
Granted	163,111	52,000
Granted (in Dollars per share)	$15.71	'
Vested	-120,115	'
Vested (in Dollars per share)	$16.09	'
Forfeited	-48,160	'
Forfeited (in Dollars per share)	$15.75	'
Unvested as of September 30, 2013	1,205,368	'
Unvested as of September 30, 2013 (in Dollars per share)	$16	'

Note_3_Earnings_Per_Share_Deta

Note 3 - Earnings Per Share (Details) - Reconciliation of Basic and Diluted Earnings Per Share Computation (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reconciliation of Basic and Diluted Earnings Per Share Computation [Abstract]	'	'	'	'
Weighted average common shares outstanding – basic	80,048	79,726	79,948	79,648
Dilutive effect of stock options and unvested restricted stock units	347	244	302	367
Weighted average common shares outstanding – diluted	80,395	79,970	80,250	80,015
Net income attributable to Knight Transportation (in Dollars)	$15,059	$16,584	$49,181	$46,418
Basic Earnings Per Share (in Dollars per share)	$0.19	$0.21	$0.62	$0.58
Diluted Earnings per Share (in Dollars per share)	$0.19	$0.21	$0.61	$0.58

Note_3_Earnings_Per_Share_Deta1

Note 3 - Earnings Per Share (Details) - Summary of Anti-dilutive Common Shares	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Summary of Anti-dilutive Common Shares [Abstract]	'	'	'	'
Number of anti-dilutive shares	1,811,212	2,916,442	1,669,552	1,925,019

Note_5_Joint_Venture_Details

Note 5 - Joint Venture (Details) (USD $)	9 Months Ended
	Sep. 30, 2013
Joint Venture [Abstract]	'
Payments to Acquire Businesses, Gross (in Dollars)	$26,000
Joint Venture Ownership Interest	52.00%

Note_6_Commitments_and_Conting1

Note 6 - Commitments and Contingencies (Details) (USD $)	9 Months Ended
	Sep. 30, 2013	Jan. 31, 2014	Jan. 31, 2013
Note 6 - Commitments and Contingencies (Details) [Line Items]	'	'	'
Self Insurance Retention	'	$3,000,000	$2,000,000
Self Insurance Aggregate Losses	'	'	1,000,000
Self-Insurance Retention for Workers' Compensation Claims Per Occurrence	500,000	'	'
Insurance Aggregate Deductible Amount	2,500,000	'	'
Minimum [Member]	'	'	'
Note 6 - Commitments and Contingencies (Details) [Line Items]	'	'	'
Self-Insurance Retention Per Occurrence	1,000,000	'	'
Maximum [Member]	'	'	'
Note 6 - Commitments and Contingencies (Details) [Line Items]	'	'	'
Self-Insurance Retention Per Occurrence	3,000,000	'	'
Insurance For Excess Personal Injury And Property Damage Liability	$55,000,000	'	'

Note_7_Dividends_Details

Note 7 - Dividends (Details) (USD $)	0 Months Ended
	Aug. 08, 2013
Common Stock Dividends [Abstract]	'
Common Stock, Dividends, Per Share, Cash Paid	$0.06

Note_8_Property_and_Equipment_

Note 8 - Property and Equipment (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Note 8 - Property and Equipment (Details) [Line Items]	'	'
Property, Plant and Equipment, Gross	$868,644	$849,008
Building and Building Improvements [Member]	'	'
Note 8 - Property and Equipment (Details) [Line Items]	'	'
Property, Plant and Equipment, Gross	$17,900	$14,100

Note_9_Goodwill_Details_Change

Note 9 - Goodwill (Details) - Changes in Carrying Amount of Goodwill and Intangible Assets (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Changes in Carrying Amount of Goodwill and Intangible Assets [Abstract]	'
Goodwill at December 31, 2012	$10,276
Amortization relating to deferred tax assets	-14
Goodwill at September 30, 2013	$10,262

Note_10_Investments_and_Relate1

Note 10 - Investments and Related Commitments (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2006	Dec. 31, 2003	Sep. 30, 2013	Dec. 31, 2008
In Millions, unless otherwise specified	TRP [Member]	TRP [Member]	TRP [Member]	TRP III [Member]	TRP III [Member]
Note 10 - Investments and Related Commitments (Details) [Line Items]	'	'	'	'	'
Total Amounts Committed To Partnership	'	$5.50	$5	'	$15
Other Restricted Assets, Noncurrent	2.2	'	'	'	'
Investments	'	'	'	10.5	'
Remaining Investment Commitment	'	'	'	$4.50	'

Note_11_Marketable_Equity_Secu1

Note 11 - Marketable Equity Securities (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
Note 11 - Marketable Equity Securities (Details) [Line Items]	'
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes	$2.60
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax	1.6
USA Truck [Member]	'
Note 11 - Marketable Equity Securities (Details) [Line Items]	'
Available-for-sale Securities	11.2
Available-for-sale Securities [Member]	'
Note 11 - Marketable Equity Securities (Details) [Line Items]	'
Other Restricted Assets, Noncurrent	$13.90

Note_12_Assets_Held_for_Sale_D

Note 12 - Assets Held for Sale (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Disclosure Text Block Supplement [Abstract]	'	'
Assets Held-for-sale, Current	$14,520	$18,362

Note_14_Company_Share_Repurcha1

Note 14 - Company Share Repurchase Programs (Details)	Sep. 30, 2013	19-May-11	Dec. 31, 2010	Nov. 13, 2008
Disclosure Text Block Supplement [Abstract]	'	'	'	'
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	'	10,000,000	'	3,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	7,438,556	'	2,020,956	'

Note_15_Fair_Value_Measurement2

Note 15 - Fair Value Measurements (Details) - Fair Value of Financial Assets and Liabilities (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets:	'	'
Equity securities- common shares	$13,870	$6,369
Restricted cash and investments:	'	'
Money market funds	1,363	1,231
Trading Securities:	'	'
Debt securities- municipal securities	2,246	2,716
Fair Value, Inputs, Level 1 [Member]	'	'
Assets:	'	'
Equity securities- common shares	13,870	6,369
Restricted cash and investments:	'	'
Money market funds	1,363	1,231
Trading Securities:	'	'
Debt securities- municipal securities	0	0
Fair Value, Inputs, Level 2 [Member]	'	'
Assets:	'	'
Equity securities- common shares	0	0
Restricted cash and investments:	'	'
Money market funds	0	0
Trading Securities:	'	'
Debt securities- municipal securities	2,246	2,716
Fair Value, Inputs, Level 3 [Member]	'	'
Assets:	'	'
Equity securities- common shares	0	0
Restricted cash and investments:	'	'
Money market funds	0	0
Trading Securities:	'	'
Debt securities- municipal securities	$0	$0

Note_16_Notes_Receivable_Detai

Note 16 - Notes Receivable (Details)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2013
			Minimum [Member]	Maximum [Member]
Note 16 - Notes Receivable (Details) [Line Items]	'	'	'	'
Notes Receivable, Interest Rate	'	'	2.00%	24.00%
Loans Outstanding Independent Contractors	112	126	'	'

Note_16_Notes_Receivable_Detai1

Note 16 - Notes Receivable (Details) - Notes Receivable (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
NotesReceivableAbstract	'	'
Notes receivable from independent contractors	$462	$605
Notes receivable from third parties	4,373	4,169
Gross notes receivable	4,835	4,774
Allowance for doubtful notes receivable	-309	-291
Total notes receivable, net of allowance	4,526	4,483
Current portion, net of allowance	714	791
Long-term portion	$3,812	$3,692

Note_17_Related_Party_Transact1

Note 17 - Related Party Transactions (Details) (US West Agriculture Exporters LLC [Member], USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
US West Agriculture Exporters LLC [Member]	'	'
Note 17 - Related Party Transactions (Details) [Line Items]	'	'
Related Party Transaction Percent of Ownership	33.00%	'
Related Party Transaction, Due from (to) Related Party, Noncurrent	$1.50	$2.80

Note_18_Line_of_Credit_Details

Note 18 - Line of Credit (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Oct. 21, 2013
			Subsequent Event [Member]
Note 18 - Line of Credit (Details) [Line Items]	'	'	'
Line of Credit Facility, Maximum Borrowing Capacity	$150	'	$300
Debt Instrument, Basis Spread on Variable Rate	0.63%	'	'
Line of Credit Facility, Interest Rate at Period End	'	'	0.75%
Line of Credit Facility, Amount Outstanding	52	80	'
Debt Instrument, Interest Rate During Period	0.94%	'	'
Letters of Credit Outstanding, Amount	24	'	'
Line of Credit Facility, Remaining Borrowing Capacity	$224	'	'