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Note 7 - Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Note 7 - Shareholders Equity

Option assumptions

		Years Ended December 31,
		2014				2013
Risk-free interest rate			1.10	%			0.78	%
Volatility factor			50.70	%			61.94	%
Dividends			0.00	%			0.00	%
Weighted average expected life (years)			4.15				4.06
Forfeiture rate			13.8	%			12.33	%

Stock option activity

Year Ended December 31, 2014
		Number of Shares				Weighted Average Exercise Price Per Share				Weighted Average Remaining Contractual Term				Aggregate Intrinsic Value
Shares under option – January 1			2,131,622			$	6.99
Options granted			252,500				3.94
Options exercised			(3,067	)			3.67
Options forfeited or expired			(324,933	)			6.77
Shares under option – December 31			2,056,122			$	6.66				3.80			$	—
Vested and expected to vest -
December 31			1,957,633			$	5.33				3.70			$	—
Options exercisable – December 31			1,296,619			$	5.63				3.02			$	—

Year Ended December 31, 2013
		Number of Shares				Weighted Average Exercise Price Per Share
Shares under option – January 1			2,211,488			$	7.47
Options granted			228,000				3.60
Options exercised			(3,000	)			3.91
Options forfeited or expired			(304,866	)			7.94
Shares under option – December 31			2,131,622			$	6.99
Options exercisable – December 31			1,107,116			$	6.32

Options - range of exercise prices

				Option outstanding												Options exercisable
Range of Exercise Prices				Number of Outstanding Options – December 31, 2014				Weighted-Average Remaining Contractual Life				Weighted- Average Exercise Price				Number of Options Exercisable at December 31, 2014				Weighted- Average Exercise Price
	$3.22 - $3.99				654,700				4.64			$	3.79				296,863			$	3.74
	$4.00 - $4.99				417,750				3.45			$	4.44				416,084				4.44
	$5.00 - $9.99				488,600				3.00			$	6.44				488,600				6.44
	$10.00 - $15.00				495,072				3.78			$	12.52				95,072				12.62
	$3.22 - $15.00				2,056,122				3.80			$	6.66				1,296,619			$	5.63

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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