Note 4 - Earnings per Share (Detail) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	640,000	529,000
Exercise Share Price Greater Than Average Fair Market Value Share Price (in Dollars per share)	$ 3.64	$ 3.43

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