Amortization expense (Details) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Amortization expenses for the year	$ 6,164	$ 3,447

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

No definition available.

Name:	fil_AmortizationExpensesForTheYear
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration