Statutory Accounting (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statutory Accounting (Textual) [Abstract]
Exceeded percentage of relevant liabilities	75.00%
Percentage of surplus as regards to policyholders	10.00%
Restricted net assets of insurance/reinsurance subsidiaries	$ 182,600,000
Total amount available for distribution to insurance/reinsurance subsidiaries	110,800,000
Company reported equity	337,306,000	328,088,000	315,328,000
Total amount available for distribution to the shareholders as dividend	124,900,000
Net restricted assets	212,400,000
ASA [Member]
Statutory Accounting Practices [Line Items]
Liquidity ratio	303.20%
ASRe [Member]
Statutory Accounting Practices [Line Items]
Liquidity ratio	145.30%
ASIC [Member]
Statutory Accounting Practices [Line Items]
Reported statutory surplus for ASIC	68,300,000
ASCIC [Member]
Statutory Accounting Practices [Line Items]
Already reflected reported statutory surplus	$ 78,900,000