CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)	Dec. 31, 2011	Jun. 30, 2011
Net of allowance for doubtful accounts on trade receivables (in dollars)	$ 15,683	$ 15,383
Common stock, par value (in dollars per share)	$ 1	$ 1
Series A Prior Cumulative Preferred Stock
Preferred stock, par value (in dollars per share)	$ 5	$ 5
Preferred stock, liquidation preference value (in dollars)	2,115,000	2,100,000
Series B Prior Cumulative Preferred Stock
Preferred stock, par value (in dollars per share)	$ 5	$ 5
Preferred stock, liquidation preference value (in dollars)	2,070,000	2,055,000
Series A Cumulative Preferred Stock
Preferred stock, par value (in dollars per share)	$ 20	$ 20
Preferred stock, liquidation preference value (in dollars)	4,814,332	4,785,065
Series B Cumulative Preferred Stock
Preferred stock, par value (in dollars per share)	$ 20	$ 20
Preferred stock, liquidation preference value (in dollars)	$ 784,590	$ 779,821