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Restricted Stock Units (RSUs) (Schedule of Restricted Stock Units) (Details)
9 Months Ended
Sep. 30, 2019
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted average share price, vested | $ / shares $ 5.48
Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Non-vested grants, beginning balance 789,250
Granted 8,000
Vested (7,000)
Forfeited (13,000)
Non-vested grants, ending balance 777,250
Weighted average share price, granted | $ / shares $ 5.27