Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 1,326	$ 2,114
Short-term investments available-for-sale	25	25
Accounts receivable (less allowance for losses of $990 in 2011 and $1,603 in 2010)	90,012	81,860
Prepaid expenses	8,348	7,801
Other current assets	2,286	3,543
Deferred income taxes	5,095	3,106
Total current assets	107,092	98,449
Accounts receivable, long-term portion	2,095	1,231
Property and equipment, net	40,915	34,851
Non-current investments available-for-sale	1,953	2,126
Other assets:
Goodwill	106,094	92,831
Other intangibles, net	35,628	32,307
Sundry	1,614	2,237
Total assets	295,391	264,032
Current liabilities:
Accounts payable	3,211	2,626
Accrued liabilities	24,751	19,433
Deferred revenue	123,678	102,590
Total current liabilities	151,640	124,649
Revolving line of credit	60,700	26,500
Deferred income taxes	4,941	5,911
Commitments and contingencies
Shareholders' equity:
Preferred stock, $10.00 par value; 1,000,000 shares authorized, none issued
Common stock, $0.01 par value; 100,000,000 shares authorized; 48,147,969 shares issued in 2011 and 2010	481	481
Additional paid-in capital	152,859	153,576
Accumulated other comprehensive loss, net of tax	(355)	(275)
Retained earnings	130,115	102,558
Treasury stock, at cost; 18,176,050 and 15,854,205 shares in 2011 and 2010, respectively	(204,990)	(149,368)
Total shareholders' equity	78,110	106,972
Liabilities and Shareholders equity, Total	$ 295,391	$ 264,032