Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accounts receivable, allowances for doubtful accounts	$ 287	$ 137
Common Stock, par value	$ 0.25	$ 0.25
Common Stock, shares authorized	360,000,000	360,000,000
Common Stock, shares issued	110,834,088	110,834,088
Treasury stock, shares	12,989,624	11,220,682