Fair Value (Annual and Quarter) (Detail) (USD $)	Mar. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Money Market Funds, at Carrying Value	$ 10,000	$ 261,000	$ 5,000
Cash Surrender Value of Life Insurance	70,000	70,000	71,000
Notes Payable, Fair Value Disclosure	259,000	259,000
Debenture, Fair Value	33,000	34,000
8¼% Limited convertible senior subordinated notes due 2012 [Member]
Convertible Debt, Fair Value Disclosures		259,000	1,200,000
9½% Subordinated debentures due 2012 [Member}
Long-term Debt, Fair Value		$ 34,000	$ 100,000

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents notes payable as of the balance sheet date.

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