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Note 7 - Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Note 7 - Shareholders' Equity (Tables) [Line Items]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

		Year Ended December 31, 2013
		Number of Shares				Weighted Average Exercise Price Per Share				Weighted Average Remaining Contractual Term				Aggregate Intrinsic Value
Shares under option at beginning of year			2,211,488			$	7.47
Options granted			228,000				3.60
Options exercised			(3,000	)			3.91
Options cancelled			(304,866	)			7.94
Shares under option at end of year			2,131,622			$	6.99				4.32			$	35
Vested and expected to vest at end of year			1,961,179			$	7.18				4.26			$	29
Options exercisable at end of year			1,107,116			$	6.32				3.44			$	12

Year Ended December 31, 2012
		Number of Shares				Weighted Average Exercise Price Per Share
Shares under option at beginning of year			2,356,228			$	8.34
Options granted			303,150				3.63
Options exercised			(28,000	)			4.09
Options cancelled			(419,890	)			9.88
Shares under option at end of year			2,211,488			$	7.47
Options exercisable at end of year			1,013,098			$	7.64

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Options Outstanding																Options Exercisable
Range of Exercise Prices				Number of Outstanding at December 31, 2013				Weighted- Average Remaining Contractual Life				Weighted- Average Exercise Price				Number Exercisable at December 31, 2013				Weighted- Average Exercise Price
$3.22	-	$3.79			197,834				5.75			$	3.43				42,191			$	3.22
$3.80	-	$3.91			241,000				4.10			$	3.88				166,000			$	3.91
$3.92	-	$4.41			254,750				4.19			$	4.17				150,752			$	4.27
$4.42	-	$4.69			293,000				4.99			$	4.42				195,334			$	4.42
$4.70	-	$5.46			85,800				3.70			$	5.19				68,601			$	5.12
$5.47	-	$6.42			300,000				4.05			$	6.42				150,000			$	6.42
$6.43	-	$10.55			412,166				3.88			$	8.93				187,166			$	8.10
$10.56	-	$12.74			91,572				1.47			$	12.40				91,572			$	12.40
$12.75	-	$13.22			21,000				1.48			$	13.22				21,000			$	13.22
$13.23	-	$15.00			234,500				5.30			$	14.77				34,500			$	13.43
$3.22	-	$15.00			2,131,622				4.32			$	7.18				1,107,116			$	6.32

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

		Year Ended December 31, 2013
Number of shares award			120,000
Weighted average fair value per share		$	3.62
Aggregate total value		$	434

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

		Number of Shares				Weighted Average Grant Date Fair Value
Unvested at December 31, 2011			1,218			$	11.33
Granted			-				0.00
Vested			(1,218	)			11.33
Forfeited			-				0.00
Unvested at December 31, 2012			-			$	0.00
Granted			120,000			$	3.62
Vested			-				0.00
Forfeited			-				0.00
Unvested at December 31, 2013			120,000			$	3.62

Employee Stock Option [Member]

Note 7 - Shareholders' Equity (Tables) [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

			Years Ended December 31,
			2013				2012
Risk-free interest rate			0.78	%			0.56	%
Volatility factor			61.94	%			63.53	%
Dividends			0.00	%			0.00	%
Weighted average expected life (years)			4.06				3.91
Forfeiture rate			12.33	%			15.00	%

Restricted Stock Units (RSUs) [Member]

Note 7 - Shareholders' Equity (Tables) [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Year Ended December 31, 2013
Risk-free interest rate			0.21	%
Volatility factor			59.08	%
Dividends			0.00	%

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