XML 49 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Note 5 - Equity Incentive Plan (Details) - Assumptions Used to Estimate Fair Value of Stock Options and Stock Appreciation Rights Awards
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2013
Minimum [Member]
Sep. 30, 2012
Minimum [Member]
Sep. 30, 2013
Maximum [Member]
Sep. 30, 2012
Maximum [Member]
Note 5 - Equity Incentive Plan (Details) - Assumptions Used to Estimate Fair Value of Stock Options and Stock Appreciation Rights Awards [Line Items]          
Risk free interest rate 0.63% 0.61% 0.63% 0.70% 0.64%
Expected volatility 57.60% 57.60% 57.60%    
Expected lives (years) 4 years 4 years 4 years    
Expected dividend yield 0.00% 0.00% 0.00%