Represents the number of equity incentive plans.

No definition available.

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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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Expenditures for salaries of officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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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- Definition

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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Net number of share options (or share units) granted during the period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Number of share instruments newly issued under a share-based compensation plan.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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Note 4 - Stock-based Compensation Plans and Warrants (Details Textual) - USD ($)			1 Months Ended		3 Months Ended	6 Months Ended
	Jan. 10, 2011	Jan. 14, 2010	Jun. 30, 2014	Dec. 18, 2009	Jun. 30, 2016	Jun. 30, 2016	Jun. 30, 2015
Two Thousand Nine Equity Incentive Plan [Member] \| Employee Stock Option [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				2 years
Two Thousand Nine Equity Incentive Plan [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period				10 years
Two Thousand Nine Equity Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized					162,500	162,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	140,000	115,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	595,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period						17,365
Two Thousand Nine Equity Incentive Plan [Member] \| Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number					507,500	507,500
Two Thousand Nine Equity Incentive Plan [Member] \| Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period						42,265
Two Thousand Nine Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized				850,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period			45,235
Twenty Fourteen Equity Incentive Plan [Member] \| Employee Stock Option [Member]
Allocated Share-based Compensation Expense						$ 0	$ 0
Twenty Fourteen Equity Incentive Plan [Member] \| Restricted Stock Units (RSUs) [Member] \| Water Project [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized					200,000	200,000
Twenty Fourteen Equity Incentive Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period						130,000
Twenty Fourteen Equity Incentive Plan [Member] \| Outside Director [Member] \| Accrues Yearly [Member]
Officers' Compensation						$ 30,000
Allocated Share-based Compensation Expense						20,000
Twenty Fourteen Equity Incentive Plan [Member] \| Outside Director [Member] \| Accrues Quarterly [Member]
Officers' Compensation						7,500
Allocated Share-based Compensation Expense						$ 5,000
Twenty Fourteen Equity Incentive Plan [Member] \| Directors and Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period						176,834
Twenty Fourteen Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized					675,000	675,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period						0
Employee Stock Option [Member]
Allocated Share-based Compensation Expense						$ 759,000	$ 510,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number					507,500	507,500
Allocated Share-based Compensation Expense					$ 446,000
Number Of Equity Incentive Plans					$ 2	$ 2