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Note 5 - Income per Common Share (Details Textual)	3 Months Ended
Note 5 - Income per Common Share (Details Textual)	Mar. 31, 2015	Mar. 31, 2014
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	169,916	316,919
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	125,067	116,292

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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