5. Income Taxes (Detail) - Table of Deferred Tax Assets and Liabilities (USD $)	Dec. 31, 2012	Dec. 31, 2011
Net operating loss carry forwards	$ 4,278,078	$ 10,071,000
Accrued liabilities and reserves		2,873,346
Depreciation and amortization	392,513	354,799
Net current deferred tax assets before valuation allowance:	5,620,032	1,518,199
Less: Valuation allowance	(2,194,434)	(1,518,199)
Current deferred tax assets, net:	3,425,598
Non-current deferred tax assets before valuation allowance	4,727,521	13,339,245
Less: Valuation allowance	(2,079,633)	(3,441,652)
Non-current deferred tax assets, net:	2,647,888	9,897,593
Non-current deferred tax liabilities:
Intangible assets acquired	(79,246)	(91,892)
Non-current deferred tax assets, net:	2,568,642	9,805,701
Total deferred tax assets, net	5,994,240	9,805,701
Current [Member]
Accrued liabilities and reserves	3,896,232	158,199
Provision for doubtful accounts	1,723,800	1,360,000
Non-Current [Member]
Stock option expense	$ 56,930	$ 40,100