XML 91 R85.htm IDEA: XBRL DOCUMENT v2.4.1.9
Segments (Schedule of Gross and Net Premiums Written) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information [Line Items]    
Gross premiums written $ 65,453us-gaap_DirectPremiumsWritten $ 62,336us-gaap_DirectPremiumsWritten
Reinsurance premium ceded (7,249)us-gaap_CededPremiumsWritten (8,528)us-gaap_CededPremiumsWritten
Net premiums written 58,204us-gaap_PremiumsWrittenNet 53,808us-gaap_PremiumsWrittenNet
Life Insurance Operations [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written 6,527us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
6,677us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
Reinsurance premium ceded (72)us-gaap_CededPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
(66)us-gaap_CededPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
Net premiums written 6,455us-gaap_PremiumsWrittenNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
6,611us-gaap_PremiumsWrittenNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
Life Insurance Operations [Member] | Traditional Life Insurance [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written 4,606us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_TraditionalLifeInsuranceMember
4,756us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_TraditionalLifeInsuranceMember
Life Insurance Operations [Member] | Accident and Health Insurance [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written 1,921us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_AccidentandHealthInsuranceMember
1,921us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_LifeInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_AccidentandHealthInsuranceMember
P&C Insurance Operations [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written 58,926us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
55,659us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
Reinsurance premium ceded (7,177)us-gaap_CededPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
(8,462)us-gaap_CededPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
Net premiums written 51,749us-gaap_PremiumsWrittenNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
47,197us-gaap_PremiumsWrittenNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
P&C Insurance Operations [Member] | Dwelling Fire & Extended Coverage [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written 33,184us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_DwellingFireandExtendedCoverageMember
30,527us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_DwellingFireandExtendedCoverageMember
P&C Insurance Operations [Member] | Homeowners (Including Mobile Homeowners) [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written 23,869us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_HomeownersIncludingMobileHomeownersMember
23,367us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_HomeownersIncludingMobileHomeownersMember
P&C Insurance Operations [Member] | Ocean Marine [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written 0us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_OceanMarineMember
75us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_OceanMarineMember
P&C Insurance Operations [Member] | Other Liability [Member]    
Segment Reporting Information [Line Items]    
Gross premiums written $ 1,873us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_InsuranceProductLineOtherliabilityMember
$ 1,690us-gaap_DirectPremiumsWritten
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
/ us-gaap_SubsegmentsAxis
= nsec_InsuranceProductLineOtherliabilityMember