XML 116 R84.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock-Based Compensation - Restricted Stock Unit Activity (Details) - $ / shares
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2017
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
RSU's granted (in dollars per share) $ 0.70 $ 1.11 $ 1.15  
Restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
RSU, beginning balance (in shares)     50,000 50,000
RSU's granted (in shares)       0
RSU's vested (in shares)       0
RSU's forfeited (in shares)       (50,000)
RSU, ending balance (in shares)       0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
RSU, weighted average beginning balance (in dollars per share)     $ 7.15 $ 7.15
RSU's granted (in dollars per share)       0.00
RSU's vested (in dollars per share)       0.00
RSU's forfeited (in dollars per share)       7.15
RSU, weighted average ending balance (in dollars per share)       $ 0.00