Reinsurance (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Reinsurer	Dec. 31, 2012
Ceded Credit Risk [Line Items]
Reinsurance receivables due from reinsurers (in hundredths)	99.00%
Number of reinsurers	2
Summary reconciliation of premiums written and premiums earned [Abstract]
Direct premiums written	$ 141,313	$ 130,402
Assumed premiums written	16,702	3,003
Ceded premiums written	(7,607)	(7,671)
Net premiums written	150,408	125,734
Direct premiums earned	141,720	131,299
Assumed premiums earned	11,517	3,115
Ceded premiums earned	(7,607)	(7,671)
Net premiums earned	145,630	126,743
Provision for benefits and losses incurred	105,828	99,026
Reinsurance loss recoveries	(5,456)	(9,209)
Total insurance benefits and losses incurred	100,372	89,817
Components of reinsurance receivables [Abstract]
Receivable on unpaid losses	14,314	18,743
Receivable on paid losses	0	25
Total reinsurance receivables	14,314	18,768
Swiss Reinsurance Corporation [Member]
Ceded Credit Risk [Line Items]
Reinsurance receivables due	1,209
General Reinsurance Corporation [Member]
Ceded Credit Risk [Line Items]
Reinsurance receivables due	$ 13,021