Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 17,511,498	$ 19,043,213
Receivables, net	2,231,677	2,456,883
Income taxes receivable	418,471
Inventories	2,460,004	2,382,802
Prepaid expenses	2,899,528	2,636,422
Deferred income taxes	5,425,848	5,425,848
Total current assets	30,947,026	31,945,168
Property and equipment
Land	27,914,847	27,914,847
Land improvements	6,561,729	6,561,729
Buildings	150,843,298	150,843,298
Building improvements	11,681,100	11,681,100
Furniture and equipment	140,401,470	132,946,374
Leasehold improvements	1,346,965	1,346,965
Gross property and equipment	338,749,409	331,294,313
Less accumulated depreciation and amortization	(163,258,754)	(152,868,719)
Net property and equipment	175,490,655	178,425,594
Other assets
Goodwill	25,110,810	25,110,810
Intangible assets, net	8,787,238	10,204,691
Deferred income taxes	1,214,113	1,214,113
Other assets, net	990,740	1,219,579
Total other assets	36,102,901	37,749,193
Total assets	242,540,582	248,119,955
Current liabilities
Accounts payable	8,065,819	8,061,570
Accrued expenses	17,489,171	17,836,194
Income taxes payable		274,401
Total current liabilities	25,554,990	26,172,165
Long-term debt	56,300,000	81,100,000
Total liabilities	81,854,990	107,272,165
Stockholders' equity
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued
Common stock, $.01 par value, 30,000,000 shares authorized; 19,096,300 shares issued; 16,454,104 outstanding at September 30, 2013 and 16,147,324 at December 31, 2012	190,963	190,963
Additional paid-in capital	30,495,639	34,363,690
Treasury stock, 2,642,196 shares at September 30, 2013 and 2,948,976 at December 31, 2012, at cost	(40,501,942)	(48,306,046)
Retained earnings	170,500,932	154,599,183
Total stockholders' equity	160,685,592	140,847,790
Total liabilities and stockholders' equity	$ 242,540,582	$ 248,119,955