Note I - Equity-based Compensation - Company's Stock Options and SAR Units Outstanding and Exercisable (Details) shares in Thousands	Sep. 30, 2016 $ / shares shares
Range 1 [Member]
Number of Options/ SARs / RSUs - Exercisable (in shares) | shares	70
Weighted Average Exercise Price - Exercisable (in dollars per share) | $ / shares	$ 16.78
Number of Options/ SARs / RSUs - Unexercisable (in shares) | shares
Weighted Average Exercise Price - Unexercisable (in dollars per share) | $ / shares
Number of Options/ SARs / RSUs (in shares) | shares	70
Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 16.78
Range 2 [Member]
Number of Options/ SARs / RSUs - Exercisable (in shares) | shares	1,572
Weighted Average Exercise Price - Exercisable (in dollars per share) | $ / shares	$ 7.35
Number of Options/ SARs / RSUs - Unexercisable (in shares) | shares	1,071
Weighted Average Exercise Price - Unexercisable (in dollars per share) | $ / shares	$ 1.73
Number of Options/ SARs / RSUs (in shares) | shares	2,643
Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 5.07
Number of Options/ SARs / RSUs - Exercisable (in shares) | shares	1,642
Weighted Average Exercise Price - Exercisable (in dollars per share) | $ / shares	$ 7.75
Number of Options/ SARs / RSUs - Unexercisable (in shares) | shares	1,071
Weighted Average Exercise Price - Unexercisable (in dollars per share) | $ / shares	$ 1.73
Number of Options/ SARs / RSUs (in shares) | shares	2,713
Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 5.38