CAPITAL STOCK - Preferred Stock dividends in arrears on a per share basis (Details 1) - $ / shares	Jun. 30, 2018	Jun. 30, 2017
6% Prior Convertible Cumulative Preferred Stock - Series A
Class of Stock [Line Items]
Cumulative preferred stock dividends in arrears	$ 17.85	$ 17.55
6% Prior Convertible Cumulative Preferred Stock - Series B
Class of Stock [Line Items]
Cumulative preferred stock dividends in arrears	17.40	17.10
5% Convertible Cumulative Preferred Stock - Series A
Class of Stock [Line Items]
Cumulative preferred stock dividends in arrears	68.75	67.50
5% Convertible Cumulative Preferred Stock - Series B
Class of Stock [Line Items]
Cumulative preferred stock dividends in arrears	$ 68.75	$ 67.50