FAIR VALUE MEASUREMENTS: (Details 2) (USD $)							3 Months Ended			3 Months Ended									3 Months Ended
	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2012 Provalliance	Mar. 31, 2011 Provalliance	Jan. 31, 2008 Provalliance	Jul. 02, 2011 Roosters	Sep. 30, 2011 Equity Call Option Roosters	Mar. 31, 2012 Equity Call Option Roosters	Dec. 31, 2011 Equity Call Option Roosters	Mar. 31, 2012 Equity Put Option Provalliance	Dec. 31, 2011 Equity Put Option Provalliance	Sep. 30, 2011 Equity Put Option Provalliance	Mar. 31, 2011 Equity Put Option Provalliance	Dec. 31, 2010 Equity Put Option Provalliance	Sep. 30, 2010 Equity Put Option Provalliance	Sep. 30, 2011 Equity Put Option Roosters	Mar. 31, 2012 Equity Put Option Roosters	Dec. 31, 2011 Equity Put Option Roosters	Mar. 31, 2011 Preferred Shares	Dec. 31, 2010 Preferred Shares	Sep. 30, 2010 Preferred Shares
Changes in financial instruments measured on recurring basis unobservable input reconciliation calculation
Balance at the beginning of the period								$ 117,000	$ 117,000										$ 3,831,000	$ 3,732,000	$ 3,502,000
Total realized and unrealized gains (losses):
Included in other comprehensive income (loss)																			(83,000)	99,000	230,000
Purchases							117,000
Other than temporary impairment																			(3,748,000)
Balance at the end of the period							117,000	117,000	117,000											3,831,000	3,732,000
Changes in financial instruments measured on recurring basis unobservable input reconciliation calculation
Balance at the beginning of the period										20,443,000	21,124,000	22,700,000	24,082,000	24,523,000	22,009,000		161,000	161,000
Total realized and unrealized gains (losses):
Included in other comprehensive income (loss)										446,000	(681,000)	(1,576,000)	1,333,000	(441,000)	2,514,000
Issuances																161,000
Included in equity in loss of affiliated companies										(20,222,000)			(2,509,000)
Transfer out of Level 3													(714,000)
Balance at the end of the period										667,000	20,443,000	21,124,000	22,192,000	24,082,000	24,523,000	161,000	161,000	161,000
Equity interest in Provalliance (as a percent)			46.70%	46.70%	30.00%
Ownership interest (as a percent)						60.00%
Financial Instruments
Debt	292,307,000	313,411,000
Fair value of debt	$ 312,300,000