Stock Option Activity (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Stock Option Activity [Line Items]
Outstanding, Shares Underlying Options	50,000
Options granted, Shares Underlying Options	617,582
Options forfeited, Shares Underlying Options	(600,000)
Outstanding, Shares Underlying Options	1,400,000
Stock Option
Stock Option Activity [Line Items]
Outstanding, Shares Underlying Options	875,000	0
Options granted, Shares Underlying Options	750,000	975,000
Options exercised, Shares Underlying Options		(100,000)
Options forfeited, Shares Underlying Options	(225,000)
Outstanding, Shares Underlying Options	1,400,000	875,000
Exercisable at end of year, Shares Underlying Options	513,736
Outstanding, Weighted Average Exercise Price	$ 0.77	$ 0
Options granted, Weighted Average Exercise Price	$ 0.66	$ 0.77
Options exercised, Weighted Average Exercise Price		$ 0.77
Options forfeited, Weighted Average Exercise Price	$ 0.77
Outstanding, Weighted Average Exercise Price	$ 0.71	$ 0.77
Exercisable, Weighted Average Exercise Price	$ 0.88
Outstanding at beginning of year Weighted -Average Remaining Contractual Term	3 years 2 months 12 days	0 years
Options granted, Weighted -Average Remaining Contractual Term	4 years 4 months 24 days	3 years 2 months 12 days
Options exercised, Weighted -Average Remaining Contractual Term		0 years
Options forfeited, Weighted -Average Remaining Contractual Term	0 years
Outstanding at end of year Weighted -Average Remaining Contractual Term	3 years 9 months 18 days	3 years 2 months 12 days
Exercisable, Weighted -Average Remaining Contractual Term	3 years
Outstanding at beginning of year Aggregate Intrinsic Value	$ 0	$ 0
Options granted, Aggregate Intrinsic Value	0	0
Options exercised, Aggregate Intrinsic Value		0
Options forfeited, Aggregate Intrinsic Value	$ 0
Outstanding at end of year Aggregate Intrinsic Value	0	0
Exercisable, Aggregate Intrinsic Value	$ 0