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Marketable Equity Securities (Tables)
3 Months Ended
Mar. 31, 2016
Accounting Policies [Abstract]  
Marketable Equity Securities and Accumulated Other Comprehensive Income
(in thousands)     March  31,     2016  December 31,     2015
  Marketable equity securities at fair value $371  $    202 
  Cost 91     91 
  Accumulated other comprehensive (loss) income for
    unrealized holding gains
280  111 
  Deferred taxes on accumulated other comprehensive
    income for unrealized holding gains
(62)   -  
Accumulated other comprehensive income $218  $111 
Changes in Marketable Securities
(in thousands) Three months ended
March 31,
  2016 2015
Gross unrealized holding (loss) gain arising during the period
   included in other comprehensive loss
$169  $(598)
Deferred taxes on unrealized holding (loss) gain included in
   other comprehensive loss
(62) 207 

Valuation allowance on deferred taxes on unrealized holding losses

included in other comprehensive loss

(207)
Net unrealized holding (loss) gain in other comprehensive income (loss) $107  $(598)