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Note 8 - Stock-Based Compensation (Details) (USD $)	9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Salaries, Wages, and Related Expenses [Member]	Sep. 30, 2013 Salaries, Wages, and Related Expenses [Member]	Sep. 30, 2014 Salaries, Wages, and Related Expenses [Member]	Sep. 30, 2013 Salaries, Wages, and Related Expenses [Member]	Sep. 30, 2014 Other Operating Income (Expense) [Member] Restricted Stock [Member]	Sep. 30, 2013 Other Operating Income (Expense) [Member] Restricted Stock [Member]	Sep. 30, 2014 Other Operating Income (Expense) [Member] Restricted Stock [Member]	Sep. 30, 2013 Other Operating Income (Expense) [Member] Restricted Stock [Member]	Sep. 30, 2014 Common Class A [Member]	Sep. 30, 2014 Management [Member]	May 29, 2013 Third Amendment [Member]	May 29, 2013 Second Amendment [Member]
Note 8 - Stock-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	1,550,000												750,000	800,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)	675,021
Maximum Number Of Shares Of Class A Common Stock Awarded To Any Participant In The Incentive Plan In Any Calendar Year (in Shares)	200,000
Allocated Share-based Compensation Expense			$ 700,000	$ 100,000	$ 900,000	$ 100,000	$ 100,000	$ 100,000	$ 100,000	$ 100,000
Shares Paid for Tax Withholding for Share Based Compensation (in Shares)											15,388
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased (in Dollars per share)											$ 11.28
Payments Related to Tax Withholding for Share-based Compensation	174,000	203,000									200,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in Shares)												11,150
Proceeds from Stock Options Exercised	$ 152,000											$ 200,000

X

- Definition

The maximum number of shares of the Class A common stock that can be awarded to a participant in the incentive plan in any calendar-year.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan.

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For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

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Number of share options (or share units) exercised during the current period.

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