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Component: (Network and Table)
Network
40303 - Disclosure - Fair Value (Fair Value, Assets Measured on Recurring Basis Using Significant Unobservable Inputs (Level 3)) (Details)
(http://hallmarkgrp.com/role/DisclosureFairValueFairValueAssetsMeasuredOnRecurringBasisUsingSignificantUnobservableInputsLevel3Details)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000819913 (http://www.sec.gov/CIK)
Fair Value [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Fair Value [Abstract]
 
 
Beginning balance as of January 1
14,087,000  
14,598,000  
Sales
 
(370,000) 
Settlements
(8,825,000) 
xsi:nil  
Purchases
xsi:nil  
xsi:nil  
Issuances
xsi:nil  
xsi:nil  
Total realized/unrealized gains included in net income
417,000  
xsi:nil  
Net gains included in other comprehensive income
 
(141,000) 
Transfers into Level 3
266,000  
xsi:nil  
Transfers out of Level 3
xsi:nil  
xsi:nil  
Ending balance as of December 31
5,945,000  
 
14,087,000