Note I - Equity-based Compensation - Company's Stock Options and SAR Units Outstanding and Exercisable (Details) shares in Thousands	Jun. 30, 2017 $ / shares shares
Weighted Average Exercise Price - Unexercisable (in dollars per share) | $ / shares	$ 2.68
Number of Options/ SARs / RSUs (in shares) | shares	2,400
Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 5.03
Number of Options/ SARs / RSUs - Exercisable (in shares) | shares	1,041
Weighted Average Exercise Price - Exercisable (in dollars per share) | $ / shares	$ 8.09
Number of Options/ SARs / RSUs - Unexercisable (in shares) | shares	1,359
Range 1 [Member]
Weighted Average Exercise Price - Unexercisable (in dollars per share) | $ / shares	$ 2.13
Number of Options/ SARs / RSUs (in shares) | shares	2,290
Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 4.65
Number of Options/ SARs / RSUs - Exercisable (in shares) | shares	1,001
Weighted Average Exercise Price - Exercisable (in dollars per share) | $ / shares	$ 7.89
Number of Options/ SARs / RSUs - Unexercisable (in shares) | shares	1,289
Range 2 [Member]
Weighted Average Exercise Price - Unexercisable (in dollars per share) | $ / shares	$ 12.81
Number of Options/ SARs / RSUs (in shares) | shares	110
Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 12.92
Number of Options/ SARs / RSUs - Exercisable (in shares) | shares	40
Weighted Average Exercise Price - Exercisable (in dollars per share) | $ / shares	$ 13.10
Number of Options/ SARs / RSUs - Unexercisable (in shares) | shares	70