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Commitments (Tables)
6 Months Ended
Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Minimum future payments under this lease at June 30, 2015 are as follows:
 
2015
 
$
69,000
 
2016
 
 
141,000
 
2017
 
 
24,000
 
 
 
$
234,000