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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2012
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense
   Years Ended December 31,
   2012  2011  2010
Current:               
 Federal  $—     $—     $—   
 State   —      —      —   
      Total Current   —      —      —   
Deferred:               
 Federal   31,940    31,940    15,515 
 State   —      —      —   
      Total Deferred   31,940    31,940    15,515 
Total provision for deferred tax  $31,940  $31,940  $15,515
Schedule of Effective Income Tax Rate Reconciliation
   Years Ended December 31,
   2012  2011  2010
 Federal tax at statutory rate   34.00%   34.00%   34.00%
 State income tax rate   5.83%   5.83%   5.83%
 Losses and credits not benefited   (38.85%)   (38.49%)   (39.44%)
 Goodwill impairment   —      —      —   
 Provision for taxes   0.98%   1.34%   0.39%
Schedule of Deferred Tax Assets and Liabilities
   Years Ended December 31,
Deferred tax assets:  2012  2011
 Net operating loss carryforwards  $10,902,000   $10,956,000 
 Credits   634,000    635,000 
 Capitalized research and development costs   446,000    562,000 
 Other acquired intangibles   184,000    203,000 
 Accruals not currently deductible   1,265,000    1,535,000 
    Total deferred tax assets   13,431,000    13,891,000 
 Valuation allowance for deferred tax assets   (13,417,395)   (13,882,515)
    Net deferred tax assets   13,605    8,485 
Deferred tax liability:          
 Acquired intangibles   (93,000)   (56,000)
Net deferred tax liabilities  $(79,395)  $(47,515)
Schedule of Unrecognized tax benefits ("UTBs")
   Amount
Beginning balance at January 1, 2012  $635,000 
Decreases in UTBs taken in prior years   (1,000)
Decreases in UTBs taken in current year   (1,000)
Amount related to settlements   —   
Amount related to lapsing of statute of limitations   —   
Ending balance at December 31, 2012  $633,000