XML 64 R14.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 8 - Dividends | 12 Months Ended
--- | ---
Dec. 31, 2014
Dividends [Abstract] |
Dividends [Text Block] | 8. Dividends In 2010, we announced that our Board of Directors approved a regular cash dividend program to our stockholders, subject to approval each quarter. Quarterly cash dividends of $0.025 per share of common stock totaling $3.3 million were declared in each quarter of 2014. Quarterly cash dividends of $0.017 per share were declared in each of the first and second quarters of 2013, and of $0.025 per share were declared in each of the third and fourth quarters of 2013, totaling $2.8 million. Quarterly cash dividends of $0.013 per share were declared in the first quarter of 2012, and of $0.017 per share were declared in each of the second through fourth quarters of 2012, along with a special dividend of $0.50 per share in the fourth quarter of 2012, totaling $18.7 million. Our ability to pay cash dividends is currently limited by restrictions contained in our revolving credit facility, which prohibits us from paying, in any fiscal year, dividends in excess of 25% of our net income from the prior fiscal year. A waiver of the 25% limitation was obtained from the lender prior to payment of the special dividend in December 2012.

X
- Definition Disclosure of information related to dividends paid during the period. + References No definition available. + Details
Name: | mrtn_DividendsTextBlock
Namespace Prefix: | mrtn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DividendsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration