4. Trademark and licensing agreements: (Detail) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2002	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Stock Issued During Period, Shares, Purchase of Assets (in Shares)	300,000
Stock Issued During Period, Value, Purchase of Assets	$ 90,000
Use Life of Acquired Definite-Lived Intangible Asset (in years)	fifteen
Finite-Lived Intangible Assets, Amortization Expense				3,000	3,000
License Agreement Fee Charged (Percent of Sales)				one percent
Licenses Revenue		$ 3,000	$ 2,000	$ 6,360	$ 5,000