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Stockholders' Equity (Tables)
6 Months Ended
Jun. 30, 2019
Equity [Abstract]  
Schedule of Stock by Class
Description of Financing Transaction
 
No. of Common Shares Issued
 
 Proceeds Received
(Net of Broker Commissions and Fees )
Common shares issued pursuant to the April 2019 ATM Agreement during the three months ended June 30, 2019
 
221,529

 
$
1,814