Note 1 - Business and Significant Accounting Policies (Details) - Shares Used to Calculated Earnings Per Share In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Shares Used to Calculated Earnings Per Share [Abstract]
Weighted average number of shares used in computation of basic earnings (losses) per share	45,461	45,438	45,431	45,431	45,431	45,431	45,440	45,431	45,431
Additional shares from the assumed exercise of employee stock awards							35
Weighted average number of shares used in computation of diluted earnings (losses) per share	45,610	45,494	45,448	45,431	45,438	45,437	45,475	45,431	45,431