Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Classification of the Company's financial instruments within the fair value hierarchy

The following table sets forth the Company's assets measured at fair value on a recurring basis by level within the fair value hierarchy at March 31, 2013:

	Financial assets measured at fair value as at
	March 31, 2013
	Level 1		Level 2		Level 3		Total
Available for sale investments	$	9,416	$	—	$	—	$	9,416
	$	9,416	$	—	$	—	$	9,416

Available for sale investments in Level 1 are based on the quoted market price for the equity investment. It is possible that some of these investments could be sold in large blocks at a future date via a negotiated agreement and such agreements may include a discount from the quoted price.

The following table sets forth the Company's liabilities measured at fair value on a recurring basis by level within the fair value hierarchy at March 31, 2013:

	Financial liabilities measured at fair value as at
	March 31, 2013
	Level 1		Level 2		Level 3		Total
5% Convertible Debentures	—		—		91,628		91,628
	$	—	$	—	$	91,628	$	91,628

The following table sets forth the Company's assets measured at fair value on a recurring basis by level within the fair value hierarchy at December 31, 2012:

	Financial assets measured at fair value as at
	December 31, 2012
	Level 1		Level 2		Level 3		Total
Available for sale investments	$	15,034	$	—	$	—	$	15,034
	$	15,034	$	—	$	—	$	15,034

The following table sets forth the Company's liabilities measured at fair value on a recurring basis by level within the fair value hierarchy at December 31, 2012:

	Financial liabilities measured at fair value as at
	December 31, 2012
	Level 1		Level 2		Level 3		Total
5% Convertible Debentures	$	—	$	—	$	99,604	$	99,604
	$	—	$	—	$	99,604	$	99,604