Financials & Filings Proxy Statements Filing date View Jan 26, 2022 View HTML 0000807863-22-000012.pdf 0000807863-22-000012.xls Jan 22, 2021 View HTML 0000807863-21-000008.pdf 0000807863-21-000008.xls Form 10-Q Filing date View May 9, 2022 View HTML 0000807863-22-000072.pdf 0000807863-22-000072.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Feb 4, 2022 View HTML 0000807863-22-000020.pdf 0000807863-22-000020.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Form 10-K Filing date View Dec 13, 2021 View HTML 0000807863-21-000098.pdf 0000807863-21-000098.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Dec 11, 2020 View HTML 0000807863-20-000140.pdf 0000807863-20-000140.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA