Investor Relations Investor Relations Investor Relations Press Releases Events & Presentations Corporate Governance Financials & Filings SEC Filings Annuals & Proxies Stock Information Investor FAQs Contact IR FINANCIALS & FILINGS Show all Annual Reports Documents Add Files 2021 Annual Report 1.3 MB Add Files 2020 Annual Report 1.2 MB Proxy Statements Filing date View Mar 29, 2022 0001275158-22-000036.pdf 0001275158-22-000036.xls Mar 16, 2021 0001275158-21-000035.pdf 0001275158-21-000035.xls Form 10-K Filing date View Feb 24, 2022 View HTML 0001275158-22-000006.pdf 0001275158-22-000006.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Feb 26, 2021 View HTML 0001275158-21-000015.pdf 0001275158-21-000015.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Form 10-Q Filing date View Nov 04, 2022 0001275158-22-000083.pdf 0001275158-22-000083.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML Jul 28, 2022 0001275158-22-000078.pdf 0001275158-22-000078.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML
FINANCIALS & FILINGS Show all Annual Reports Documents Add Files 2021 Annual Report 1.3 MB Add Files 2020 Annual Report 1.2 MB Proxy Statements Filing date View Mar 29, 2022 0001275158-22-000036.pdf 0001275158-22-000036.xls Mar 16, 2021 0001275158-21-000035.pdf 0001275158-21-000035.xls Form 10-K Filing date View Feb 24, 2022 View HTML 0001275158-22-000006.pdf 0001275158-22-000006.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Feb 26, 2021 View HTML 0001275158-21-000015.pdf 0001275158-21-000015.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Form 10-Q Filing date View Nov 04, 2022 0001275158-22-000083.pdf 0001275158-22-000083.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML Jul 28, 2022 0001275158-22-000078.pdf 0001275158-22-000078.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML