Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Capital Stock, Stock Plans and Stock-based Compensation - Black-scholes Valuation Model Assumptions (Details)

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Note 4 - Capital Stock, Stock Plans and Stock-based Compensation - Black-scholes Valuation Model Assumptions (Details) - Employee Stock Option [Member] - $ / shares
Jan. 13, 2017
May 15, 2016
The 2003 Outside Directors Stock Plan [Member]    
Weighted-average fair value per option (in dollars per share) $ 2.63  
Risk -free interest rate [1] 2.40%  
Expected volatility of stock [2] 56.32%  
Dividend yield 0.00%  
Expected option life (Year) [3] 10 years  
The 2010 Stock Option Plan [Member]    
Weighted-average fair value per option (in dollars per share)   $ 2
Risk -free interest rate [1]   1.27%
Expected volatility of stock [2]   53.12%
Dividend yield   0.00%
Expected option life (Year) [3]   6 years
[1] The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.
[2] The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.
[3] The expected option life is based on historical exercises and post-vesting data.