Lightbridge Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details)

Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Weighted Average Remaining Contractural Life - Years	3 years 3 months 22 days	4 years
Number of options outstanding	2,026,564	1,564,257	1,639,842
Weighted Average Exercise Price Stock Options Outstanding	$ 9.19	$ 11.16	$ 11.46
Number of Awards Vested	1,564,257	1,530,200
Weighted Average Exercise Price	$ 11.16	$ 11.28
Weighted Average Remaining Contractual Life of Stock Options Vested	3 years	3 years 11 months 8 days
Range 1 [Member]
Exercise price lower range limit	$ 2.55	$ 2.55
Exercise price upper range limit	$ 5.00	$ 5.00
Weighted Average Remaining Contractural Life - Years	4 years 3 months 4 days	5 years 22 days
Number of options outstanding	645,644	183,337
Weighted Average Exercise Price Stock Options Outstanding	$ 3.10	$ 4.50
Number of Awards Vested	183,337	183,337
Weighted Average Exercise Price	$ 4.50	$ 4.50
Weighted Average Remaining Contractual Life of Stock Options Vested	4 years 22 days	5 years 22 days
Range 2 [Member]
Exercise price lower range limit	$ 5.01	$ 5.01
Exercise price upper range limit	$ 12.90	$ 12.90
Weighted Average Remaining Contractural Life - Years	4 years 1 month 10 days	5 years 1 month 10 days
Number of options outstanding	782,584	782,584
Weighted Average Exercise Price Stock Options Outstanding	$ 7.45	$ 7.45
Number of Awards Vested	782,584	748,527
Weighted Average Exercise Price	$ 7.45	$ 7.53
Weighted Average Remaining Contractual Life of Stock Options Vested	4 years 1 month 10 days	5 years 11 days
Range 3 [Member]
Exercise price lower range limit	$ 13.50	$ 13.50
Exercise price upper range limit	$ 18.90	$ 18.90
Weighted Average Remaining Contractural Life - Years	1 year 3 months 18 days	2 years 3 months 18 days
Number of options outstanding	358,336	358,336
Weighted Average Exercise Price Stock Options Outstanding	$ 14.17	$ 14.17
Number of Awards Vested	358,336	358,336
Weighted Average Exercise Price	$ 14.17	$ 14.17
Weighted Average Remaining Contractual Life of Stock Options Vested	1 year 3 months 18 days	2 years 3 months 18 days
Range 4 [Member]
Exercise price lower range limit	$ 19.20	$ 19.20
Exercise price upper range limit	$ 23.85	$ 23.85
Weighted Average Remaining Contractural Life - Years	1 year 1 month 13 days	2 years 1 month 13 days
Number of options outstanding	240,000	240,000
Weighted Average Exercise Price Stock Options Outstanding	$ 23.85	$ 23.85
Number of Awards Vested	240,000	240,000
Weighted Average Exercise Price	$ 23.85	$ 23.85
Weighted Average Remaining Contractual Life of Stock Options Vested	1 year 1 month 13 days	2 years 1 month 13 days