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Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Minimum future payments under these leases at June 30, 2013 are as follows: 
 
2013
 
$
54,000
 
2014
 
 
111,000
 
2015
 
 
115,000
 
2016
 
 
118,000
 
2017
 
 
20,000
 
 
 
$
418,000