Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Narrative) (Details)

v2.4.0.6
Stockholders' Equity (Narrative) (Details) (USD $)
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Common Stock, Shares Authorized 500,000,000   500,000,000  
Common Stock, Shares, Outstanding 12,548,935   12,526,240  
Common stock reserved for issuance 0   2,264  
Class of Warrant or Right, Outstanding 1,034,996      
Number of options outstanding 1,639,842   1,639,842 1,674,065
Total stock and stock equivalents outstanding 15,246,374      
Number of options vested and expected to vest outstanding 1,588,685   1,523,536  
Aggregate intrinsic value $ 0   $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value $ 1.74   $ 1.41  
Unrecognized compensation costs 100,000   100,000  
Weighted average recognition period 1 year      
Stock-based compensation 147,163 350,745    
Common Stock issued 12,548,935   12,526,240  
Approximations [Member]
        
Stock option expense 100,000 200,000    
Expected compensation cost 100,000      
Stock-based compensation $ 100,000 $ 400,000    
Chief Executive Officer [Member]
        
Non-qualified stock options 665,088      
Issuance of 273,536 5-10 year options [Member]
        
Non-qualified stock options 229,558      
Lower Limit $ 4.50      
Upper Limit $ 14.40      
Issuance of 1,136,748 8-10 year options [Member]
        
Non-qualified stock options 1,136,748      
Lower Limit $ 5.42      
Upper Limit $ 23.85      
Issuance of 229,558 8-10 year options [Member]
        
Non-qualified stock options 273,536      
Lower Limit $ 5.70      
Upper Limit $ 19.20      
Minimum [Member]
        
Restricted stock grants estimated forfeiture amount 1.40%      
Minimum [Member] | Chief Executive Officer [Member]
        
Contractural lives 2 years 8 months 12 days      
Minimum [Member] | Directors, Officers and Employees [Member]
        
Contractural lives 3 years 3 months 18 days      
Maximum [Member]
        
Restricted stock grants estimated forfeiture amount 3.00%      
Maximum [Member] | Chief Executive Officer [Member]
        
Contractural lives 8 years      
Maximum [Member] | Directors, Officers and Employees [Member]
        
Contractural lives 8 years      
Stock Compensation Plan [Member]
        
Common Stock, Capital Shares Reserved for Future Issuance 2,500,000      
Maximum restricted shares granted [Member]
        
Common Stock, Capital Shares Reserved for Future Issuance 1,250,000      
Maximum number of shares in respect to stock options [Member]
        
Common Stock, Capital Shares Reserved for Future Issuance 266,667      
Maximum restricted shares granted to one person [Member]
        
Common Stock, Capital Shares Reserved for Future Issuance 166,667      
Restricted Stock [Member]
        
Unvested Shares 22,601   43,032