Note 10. Fair Value - Textuals (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair Value, Transfers Between Levels, Amount	$ 0
Derivative Gain (Loss)	1,987,000	(3,281,000)	1,348,000
Fair Value, Purchases and Sales of Level 3 Assets	0
Convertible Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Purchased investment securities			2,300,000
Stock Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair Value Assumptions, Risk Free Interest Rate	0.69%
Fair Value Assumptions, Expected Volatility Rate	97.10%
Fair Value Assumptions, Expected Term	4 years 5 months
Purchased investment securities			400,000
Held for Sale Facilty and Land Related to the Gaylord, Michigan Exited Operation | Unallocated Corporate and Eliminations | Other Restructuring Plans | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets, Non-recurring fair value adjustment, impairment loss	572,000
Convertible Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impairment losses recognized in earnings		1,200,000
Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair Value Assumptions, Risk Free Interest Rate	0.69%
Fair Value Assumptions, Expected Volatility Rate	97.10%
Fair Value Assumptions, Expected Term	4 years 5 months
Impairment losses recognized in earnings	700,000
Equipment | Furniture segment | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets, Non-recurring fair value adjustment, impairment loss	78,000
Non-operating income/expense | Stock Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative Gain (Loss)	$ (526,000)	$ 1,041,000	$ (7,000)