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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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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 number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Price of a single share of a number of saleable stocks of a company.

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Number of options vested.

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

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Note 10 - Stock Incentives (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Feb. 29, 2016	Feb. 28, 2013	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Allocated Share-based Compensation Expense			$ 99	$ 69	$ 365	$ 600
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period					13,500
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price					$ 9.91
Stock Incentive Plan 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			400,000		400,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant			49,575		49,575
Employee Stock Option [Member] \| Outside Of The 2014 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares						100,000
Share Price				$ 34.788		$ 34.788
Stock Option With Marketbased Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period					1,875	20,550
Stock Option With Marketbased Vesting [Member] \| Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares						22,500
Share Price				$ 34.788		$ 34.788
Restricted Stock [Member] \| Stock Incentive Plan 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	2,000	16,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 21.695
Allocated Share-based Compensation Expense						$ 4,000