Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Operating Loss Carryforwards [Line Items]
Deferred tax assets, operating loss carryforwards	$ 7,327,107	$ 7,087,118
Operating loss carryforwards, expiration dates	Carry forwards expire in twenty years beginning in 2026 and for the State of California purposes they expire in five years.
Effective income tax rate reconciliation, at federal statutory income tax rate	30.00%	30.00%
Deferred tax assets, operating loss carryforwards, foreign	21,800,000	21,000,000
Deferred tax assets, operating loss carryforwards, domestic	$ 19,600,000	$ 19,800,000

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References+ Details

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

+ References+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

+ References+ Details

- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

+ References+ Details