XML 63 R45.htm IDEA: XBRL DOCUMENT v2.4.1.9
Additional Paid-In Capital (Schedule Of Compensation Options) (Details) (USD $)
 1 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Additional Paid-In Capital [Abstract]      
Compensation Options Outstanding     $ 225,000vgz_CompensationOptionsOutstanding
Compensation options, Exercised (in shares) (225,000)vgz_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercised (225,000)vgz_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercised  
Compensation options, Weighted average exercise price per share (in dollars per share)     $ 3.30vgz_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationOptionsOutstandingWeightedAverageExercisePrice
Expiry date     Apr. 01, 2013
Compensation options, Weighted average remaining life (yrs.)     3 months 18 days