Consolidated Condensed Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 38,583	$ 32,007
Restricted cash	0	300
Investments	37,859	37,631
Accounts receivable, less allowance for doubtful accounts of $7,610 and $6,748, respectively	13,055	11,601
Receivables from affiliates	432	9,330
Inventories, net	1,711	1,413
Deferred income taxes	4,407	3,242
Other current assets	2,700	3,856
Total current assets	98,747	99,380
Restricted cash and sinking funds	1,003	980
Investments	872	2,439
Investment in unconsolidated affiliate	32,338	31,756
Property and equipment, net	46,748	37,099
Noncurrent deferred income taxes	465	108
Other assets	2,921	2,411
Total assets	183,094	174,173
Current liabilities:
Accounts payable	3,081	4,038
Payable to affiliates	2,899	0
Accrued expenses	9,588	8,541
Other current liabilities	4,000	3,874
Income taxes payable	2,759	2,147
Total current liabilities	22,327	18,600
Long-term debt and convertible debentures	23,423	23,070
Long-term deferred tax liability	431	431
Total liabilities	46,181	42,101
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value, 500,000 shares authorized, none issued	0	0
Additional paid-in capital	117,594	115,815
Accumulated other comprehensive income	6,148	4,802
Retained earnings	13,003	11,290
Total stockholders' equity	136,913	132,072
Total liabilities and stockholders' equity	183,094	174,173
Common Stock
Stockholders' equity:
Common Stock	156	153
Total stockholders' equity	156	153
Common Stock Class B
Stockholders' equity:
Common Stock	12	12
Total stockholders' equity	$ 12	$ 12