Note 12 - Stockholders' Equity (Details) (USD $)	0 Months Ended			1 Months Ended	6 Months Ended		1 Months Ended	6 Months Ended	1 Months Ended	6 Months Ended			1 Months Ended
	Jul. 02, 2013	Jun. 30, 2013	Dec. 31, 2012	Mar. 31, 2013 Restricted Stock [Member] 2007 Long-Term Incentive Compensation Plan [Member]	Jun. 30, 2013 Restricted Stock [Member] 2007 Long-Term Incentive Compensation Plan [Member]	Jun. 30, 2013 Per Employee [Member] Employee Stock Purchase Plan [Member]	Mar. 31, 2013 2007 Long-Term Incentive Compensation Plan [Member]	Jun. 30, 2013 2007 Long-Term Incentive Compensation Plan [Member]	Mar. 31, 2013 2007 Directors' Compensation Incentive Plan [Member]	Jun. 30, 2013 2007 Directors' Compensation Incentive Plan [Member]	Jun. 30, 2013 Employee Stock Purchase Plan [Member]	Jun. 30, 2011 Employee Stock Purchase Plan [Member]	Mar. 31, 2013 2007 Long-Term Incentive Compensation Plan [Member]
Note 12 - Stockholders' Equity (Details) [Line Items]
Preferred Stock, Shares Authorized		25,000,000	25,000,000
Common Stock, Shares Authorized		250,000,000	250,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized								8,000,000		2,500,000		2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		1,948,116						800,000		500,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				644,190					238,973
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)					$ 2.72					$ 2.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross							802,678
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period													3 years
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)								$ 2.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)								$ 1.78
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Per Employee Per Offering Period						2,500
Length Of Offering Period											27 months
Purchase Price Percent Of Fair Value											85.00%
Stock Issued During Period, Shares, Employee Stock Purchase Plans	7,283
Employee Stock Ownership Plan (ESOP), Weighted Average Purchase Price of Shares Purchased (in Dollars per share)	$ 1.52