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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Note 13 - Stock Option Plans (Details) - Stock Options Outstanding (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number Outstanding (in Shares)	274,500	270,500	345,500
Wgt. Avg. Exercise Price	$ 1.72	$ 1.75
Options Outstanding Exercise Price Range 1 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range of Exercise Price	$ 0.69
Upper Range of Exercise Price	$ 2.08
Number Outstanding (in Shares)	250,500
Wgt. Avg. Contractual Life Remaining (yrs)	6 years 146 days
Wgt. Avg. Exercise Price	$ 1.55
Aggregate Intrinsic Value (in Dollars)	$ 31,525
Options Outstanding Exercise Price Range 2 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range of Exercise Price	$ 3.30
Upper Range of Exercise Price	$ 3.84
Number Outstanding (in Shares)	24,000
Wgt. Avg. Contractual Life Remaining (yrs)	2 years 328 days
Wgt. Avg. Exercise Price	$ 3.57
Options Outstanding Exercise Price Range 3 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range of Exercise Price	$ 0.69
Upper Range of Exercise Price	$ 3.84
Number Outstanding (in Shares)	274,500
Wgt. Avg. Contractual Life Remaining (yrs)	6 years 36 days
Wgt. Avg. Exercise Price	$ 1.72
Aggregate Intrinsic Value (in Dollars)	$ 31,525