Note 5. Convertible Preferred Stock (Detail) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Preferred Stock, Shares Authorized	10,000,000			10,000,000		10,000,000
Preferred Stock, Shares Issued	3,262			3,262		1,700
Preferred Stock, Dividend Rate, Percentage			10.00%
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.01			$ 0.01		$ 0.01
Preferred Stock, Dividends, Per Share, Cash Paid (in Dollars per share)			$ 0.10
Proceeds from Issuance of Convertible Preferred Stock (in Dollars)				$ 20,000	$ 18,000
Preferred Stock, Amount of Preferred Dividends in Arrears (in Dollars)	8,097	8,098	6,558
Cash [Member] | Convertible Preferred Stock [Member]
Preferred Stock, Shares Issued			223
Debt [Member] | Convertible Preferred Stock [Member]
Preferred Stock, Shares Issued			850
Debt [Member]
Proceeds from Issuance of Convertible Preferred Stock (in Dollars)			85,000
Preferred Stock Issued For Accrued Dividends And Interest [Member] | Convertible Preferred Stock [Member]
Preferred Stock, Shares Issued			257
Shares Issued For Accrued Interest [Member]
Proceeds from Issuance of Convertible Preferred Stock (in Dollars)			25,300
Unpaid Preferred Dividends [Member]
Proceeds from Issuance of Convertible Preferred Stock (in Dollars)			379
Shares Issued For Dividends [Member] | Convertible Preferred Stock [Member]
Preferred Stock, Shares Issued			232
Shares Issued For Dividends [Member]
Proceeds from Issuance of Convertible Preferred Stock (in Dollars)			$ 23,199
Series 2010-A [Member]
Preferred Stock, Shares Issued	10,000			10,000
Preferred Stock, Dividend Rate, Percentage				10.00%
Convertible Preferred Stock, Shares Issued upon Conversion	1,000			1,000
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 100			$ 100
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)	$ 0.10			$ 0.10
Convertible Preferred Stock [Member]
Preferred Stock, Shares Issued			1,339