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Note 8 - Earnings Per Share (Details)	3 Months Ended
Note 8 - Earnings Per Share (Details)	Mar. 31, 2014	Mar. 31, 2013
Common Class A [Member]
Note 8 - Earnings Per Share (Details) [Line Items]
Common Stock to Dividend or Distribution Payable	one-sixth
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	228,036	82,455
Common Class B [Member]
Note 8 - Earnings Per Share (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,062	13,743

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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