Note 6. Common Stock (Detail) - Summary Common Stock Issued and Cash Received (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended			6 Months Ended
	Apr. 27, 2012	Apr. 30, 2012		Sep. 30, 2012	Mar. 31, 2012
Number of Shares of Common Stock Issued		775,213		46,241,000	45,396,000
Share Price (in Dollars per share)				$ 0.01	$ 0.01
Gross Proceeds (in Dollars)	$ 1,000	$ 1,000		$ 878
Initial Purchase Shares [Member]
Number of Shares of Common Stock Issued		599,880
Share Price (in Dollars per share)		$ 1.667
Gross Proceeds (in Dollars)		1,000
Initial Commitment Shares [Member]
Number of Shares of Common Stock Issued		160,000
Initial Additional Commitment Shares [Member]
Number of Shares of Common Stock Issued		15,333	[1]
Share Price (in Dollars per share)			[1]
Gross Proceeds (in Dollars)			[1]

[1] Calculated as follows: ($1.0 million stock purchase divided by $15.0 million total maximum amount) multiplied by 230,000 additional commitment shares.