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v3.8.0.1

Consolidated Balance Sheets - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 15,791 | $ 488
Receivables: |  |
Trade, less allowances of $300 and $275, respectively | 74,886 | 69,199
Other | 6,131 | 4,436
Prepaid expenses and other | 19,810 | 19,307
Total current assets | 116,618 | 93,430
Property and equipment: |  |
Less accumulated depreciation | (211,728) | (201,728)
Net property and equipment | 571,920 | 557,825
Other assets | 1,865 | 2,493
| 690,403 | 653,748
Current liabilities: |  |
Accounts payable | 16,478 | 14,391
Insurance and claims accruals | 26,177 | 19,440
Accrued liabilities | 21,622 | 26,839
Total current liabilities | 64,277 | 60,670
Long-term debt |  | 7,886
Deferred income taxes | 100,626 | 147,854
Total liabilities | 164,903 | 216,410
Commitments and contingencies (Note 16) |  |
Stockholders’ equity: |  |
Preferred stock, $.01 par value per share; 2,000,000 shares authorized; no shares issued and outstanding |  |
Common stock, $.01 par value per share; 96,000,000 shares authorized; 54,533,455 shares at December 31, 2017, and 54,391,525 shares at December 31, 2016, issued and outstanding | 545 | 544
Additional paid-in capital | 76,413 | 74,175
Retained earnings | 448,542 | 362,619
Total stockholders’ equity | 525,500 | 437,338
| 690,403 | 653,748
Revenue Equipment [Member] |  |
Property and equipment: |  |
Property and equipment | 652,974 | 634,831
Land and Building [Member] |  |
Property and equipment: |  |
Property and equipment | 79,881 | 75,566
Buildings And Land Office Equipment And Other [Member] |  |
Property and equipment: |  |
Property and equipment | $ 50,793 | $ 49,156

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Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=mrtn_BuildingsAndLandOfficeEquipmentAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |