Financials & Filings Proxy Statements Filing date View Jan 27, 2020 View HTML 0000807863-20-000012.pdf 0000807863-20-000012.xls Jan 28, 2019 View HTML 0000807863-19-000005.pdf 0000807863-19-000005.xls Form 10-Q Filing date View May 7, 2020 View HTML 0000807863-20-000044.pdf 0000807863-20-000044.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Feb 7, 2020 View HTML 0000807863-20-000018.pdf 0000807863-20-000018.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT Form 10-K Filing date View Dec 6, 2019 View HTML 0000807863-19-000080.pdf 0000807863-19-000080.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT Dec 14, 2018 View HTML 0000807863-18-000115.pdf 0000807863-18-000115.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT