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Repurchase Reserve Liability (Tables)
 6 Months Ended
Jun. 30, 2017
Repurchase Reserve Liability [Abstract]  
Schedule of repurchase reserve liability
  Three Months Ended June 30,  Six Months Ended June 30, 
(in thousands) 2017  2016  2017  2016 
Balance at beginning of year $160  $160  $160  $160 
Provision for repurchase liability  0   2   0   2 
Reimbursement of expenses  0   (2)  0   (2)
Balance at end of year $160  $160  $160  $160