Related Party Transactions - Additional Information (Detail)	Dec. 31, 2004 shares
Related Party Transactions [Abstract]
Common Stock granted in exchange for licensing	33,652
Percentage of royalty payment based on sale	1.00%

Total number of shares of other common stock instruments held by shareholders, such as exchangeable shares. May be all or portion of the number of common shares authorized.

No definition available.

Name:	us-gaap_CommonStockOtherSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant