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Accounting for Stock-Based Compensation - Restricted Stock Award Activity (Details) - Restricted Stock
6 Months Ended
Jun. 30, 2018
$ / shares
shares
Number of Shares  
Beginning balance (shares) | shares 0
Awarded (shares) | shares 294,250
Vested (shares) | shares 0
Forfeited (shares) | shares 0
Ending balance (shares) | shares 294,250
Weighted Average Grant Date Fair Value  
Beginning balance (USD per share) | $ / shares $ 0.00
Vested (USD per share) | $ / shares 0.00
Awarded (USD per share) | $ / shares 3.45
Forfeited (USD per share) | $ / shares 0
Ending balance (USD per share) | $ / shares $ 3.45