Consolidated Statements Of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating Activities
Net income	$ 7,410,468	$ 4,804,840
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	292,732	232,009
Amortization, net	267,516	201,824
Amortization related to postretirement benefits obligation	2,388	5,038
Share-based compensation expense related to stock options	40,092	36,947
Increase in allowance for doubtful accounts on premiums receivable	218,464	481,000
Net loss (gain) on disposals of property	1,435	(16,782)
Net realized gain on investments	(71,616)	(258,029)
Net earnings from other investments	(815,714)	(694,906)
Provision for claims	607,812	1,992,466
Provision for deferred income taxes	1,517,000	957,000
Excess tax benefits related to exercise of stock options and SARs	(935,563)	0
Changes in assets and liabilities:
Decrease (increase) in receivables	12,167	(2,278,352)
Increase in other assets	(3,367,497)	(261,317)
Increase in current income taxes recoverable	(771,419)	(372,426)
Increase (decrease) in accounts payable and accrued liabilities	1,698,084	(222,017)
Decrease in current income taxes payable	(1,336,824)	(640,533)
Payments of claims, net of recoveries	(918,812)	(2,441,466)
Net cash provided by operating activities	5,721,839	1,525,296
Investing Activities
Purchases of available-for-sale securities	(641,302)	(10,435,418)
Purchases of short-term securities	(3,835,960)	(2,424,628)
Purchases of other investments	(780,778)	(2,265,523)
Investment in/purchase of subsidiary	(350,000)	(350,000)
Proceeds from sales and maturities of available-for-sale securities	5,230,400	4,947,338
Proceeds from sales and maturities of short-term securities	1,325,143	8,115,946
Proceeds from sales and distributions of other investments	1,072,467	995,592
Proceeds from sales of other assets	25,308	204,750
Purchases of property	(538,466)	(164,183)
Proceeds from disposals of property	3,135	34,364
Net cash provided by (used in) investing activities	1,509,947	(1,341,762)
Financing Activities
Repurchases of common stock	(1,378,131)	(626,885)
Exercise of options	68,032	152,792
Dividends paid	(329,569)	(294,048)
Net cash used in financing activities	(1,639,668)	(768,141)
Net Increase (Decrease) in Cash and Cash Equivalents	5,592,118	(584,607)
Cash and Cash Equivalents, Beginning of Period	20,810,018	18,042,258
Cash and Cash Equivalents, End of Period	26,402,136	17,457,651
Cash Paid During the Year for:
Income taxes, payments, net	2,892,000	1,817,000
Non cash net unrealized gain on investments, net of deferred tax provision of $(236,859) and $(441,460) for 2013 and 2012, respectively	(440,996)	(835,326)
Non cash intangible assets acquired from purchase of subsidiary	0	(1,481,900)
Non cash contingent liability from purchase of subsidiary	$ 0	$ 691,250