Note 2 - Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

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

	Number of Options			Weighted Average Option Price
Balance, December 31, 2013		2,187,019		$	4.11
Granted		-			-
Exercised		-			-
Cancelled		(332,016	)		6.12
Balance, March 31, 2014		1,855,003		$	3.75

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

	Three months ended March 31,
	2014		2013
Risk free interest rate range		-		1.99	-	2.04	%
Weighted average life (in years)		10			10
Weighted average volatility		-			66.26		%
Volatility range		-		66.16	-	66.28	%
Expected dividend yield		-			-
Weighted average grant-date fair value per share of options granted		-	$		1.80

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

	Restricted Stock Shares			Weighted Average Grant Value
Nonvested restricted stock at December 31, 2013		61,656		$	3.21
Granted		-			-
Vested		(15,836	)		1.82
Cancelled/Forfeited		-			-
Nonvested restricted stock at March 31, 2014		45,820		$	3.69