Note 2 - Earnings Per Common Share (Detail)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	396,050	272,500
Unvested Performance Unit Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	34,641	35,680

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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+ Details