Consolidated Statements of Cash Flows (unaudited) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net income	$ 742,390	$ 3,691,123
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	12,945	10,610
Stock-based compensation expense	39,806	133,698
Deferred tax assets	260,413	(3,539,240)
Changes in operating assets and liabilities:
Accounts receivable	1,389,545	970,098
Prepaid expenses and other current assets	(69,095)	11,436
Accounts payable and accrued expenses	1,833,233	(447,275)
Deferred revenue	(109,275)	(155,943)
Net cash provided by operating activities	4,099,962	674,507
Cash flows from investing activities:
Maturity of marketable investments	2,000,000	0
Purchases of marketable investments	(2,000,000)	0
Payment for royalty buy down	(1,500,000)	0
Net cash used in investing activities	(1,500,000)	0
Cash flows from financing activities:
Proceeds from stock option exercises	78,000	0
Payments for repurchase of common stock	(198,861)	0
Excess tax benefits from share-based payment arrangements	102,104	0
Net cash used in financing activities	(18,757)	0
Increase in cash and cash equivalents	2,581,205	674,507
Cash and cash equivalents at beginning of year	3,196,831	2,470,852
Cash and cash equivalents at end of year	5,778,036	3,145,359
Cash paid during the year for:
Interest	0	0
Taxes	$ 0	$ 0