Note 4 - Credit Facility	12 Months Ended
Dec. 31, 2011
Debt Disclosure [Text Block]	Note 4. Credit Facility On March 21, 2008, Avalon entered into a $3.5 million unsecured line of credit agreement with The Huntington National Bank. Avalon has never borrowed monies under the line of credit. On April 26, 2011, the line of credit was reduced to $1 million. Interest on borrowings accrues at LIBOR plus 1.75%. The agreement provides for a minimum interest rate of 3.25%. The line of credit contains certain financial and other covenants, customary representations, warranties and events of defaults. Avalon was in compliance with the debt covenants at December 31, 2011 and expects to meet the covenants throughout 2012. The line of credit is renewed annually. At December 31, 2011 and December 31, 2010, there were no borrowings under the line of credit.

Note 4 - Credit Facility

12 Months Ended

Dec. 31, 2011

Note 4. Credit Facility

On March 21, 2008, Avalon entered into a $3.5 million unsecured line of credit agreement with The Huntington National Bank. Avalon has never borrowed monies under the line of credit. On April 26, 2011, the line of credit was reduced to $1 million. Interest on borrowings accrues at LIBOR plus 1.75%. The agreement provides for a minimum interest rate of 3.25%. The line of credit contains certain financial and other covenants, customary representations, warranties and events of defaults. Avalon was in compliance with the debt covenants at December 31, 2011 and expects to meet the covenants throughout 2012. The line of credit is renewed annually. At December 31, 2011 and December 31, 2010, there were no borrowings under the line of credit.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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