Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Lease Contract Termination (Details)

v3.10.0.1
Commitments and Contingencies Lease Contract Termination (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2018
Restructuring Reserve [Roll Forward]    
Contract termination obligation, beginning of period $ 149 $ 194
Lease termination costs incurred 224 224
Accretion expense 8 13
Payments on obligations (64) (114)
Contract termination obligation, end of period 317 317
London, United Kingdom [Member]    
Restructuring Reserve [Roll Forward]    
Contract termination obligation, beginning of period 149 194
Lease termination costs incurred 0 0
Accretion expense 4 9
Payments on obligations (50) (100)
Contract termination obligation, end of period 103 103
Minneapolis Headquarters [Member]    
Restructuring Reserve [Roll Forward]    
Contract termination obligation, beginning of period 0 0
Lease termination costs incurred 224 224
Accretion expense 4 4
Payments on obligations (14) (14)
Contract termination obligation, end of period 214 $ 214
Business Exit Costs $ 177