1、 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington,D.C.20549 Form 10-K Commission File Number 1-15589 (Exact name of registrant as specified in its charter)Registrants telephone number,including area code:(402)331-3727 Securities registered pursuant to Section 12(b)of the Act:Securities re
2、gistered pursuant to Section 12(g)of the Act:Common Stock,$.01 Par Value (Title of Class)Indicate by check mark if the registrant is a well-known seasoned issuer,as defined in Rule 405 of the Securities Act.Yes?No?Indicate by check mark if the registrant is not required to file reports pursuant to S
3、ection 13 or Section 15(d)of the Act.Yes?No?Indicate by check mark whether the registrant(1)has filed all reports required to be filed by Section 13 of 15(d)of the Securities Exchange Actof 1934 during the preceding 12 months(or for such shorter period that the registrant was required to file such r
4、eports),and(2)has been subjectto such filing requirements for the past 90 days.Yes?No?Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website,if any,every Interactive Data Filerequired to be submitted and posted pursuant to Rule 405 of Regulatio
5、n S-T(232.405 of this chapter)during the preceding 12 months(or for such shorter period that the registrant was required to submit and post such files).Yes?No?Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K(229.405 of this chapter)is not contained her
6、ein,and will not be contained,to the best of registrants knowledge,in definitive proxy or information statements incorporated by reference in Part IIIof this Form 10-K or any amendment to this Form 10-K.?Indicate by check mark whether the registrant is a large accelerated filer,an accelerated filer,