CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Cash Flows from Operating Activities:
Net (loss) income	$ (245,790)	$ 2,097,176
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	530,014	437,530
Deferred taxes	(1,572,669)	(1,484,711)
Share-based compensation	1,237,616	1,126,921
Changes in operating assets and liabilities:
Accounts receivable	(161,116)	(678,165)
Prepaid expenses and other current assets	(476,611)	161,603
Accounts payable	460,315	20,464
Accrued liabilities	240,970	(219,365)
Deferred revenue	32,724	(388,500)
Net cash provided by operating activities	45,453	1,072,953
Cash Flows from Investing Activities:
Purchase of short-term and long-term investments	(16,299,000)	(13,822,000)
Proceeds from sale of short-term investments	16,194,000	679,000
Purchase of property and equipment	(809,491)	(236,864)
Expenditures related to intangible assets	(181,915)	(563,711)
Net cash used in investing activities	(1,096,406)	(13,943,575)
Cash Flows from Financing Activities:
Proceeds from exercise of stock options	460,423	563,454
Purchase of treasury stock	(259,805)
Net cash provided by financing activities	200,618	563,454
Net Decrease in Cash and Cash Equivalents	(850,335)	(12,307,168)
Cash and Cash Equivalents, Beginning of Period	10,697,827	27,988,164
Cash and Cash Equivalents, End of Period	9,847,492	15,680,996
Cash paid during the period for:
Income taxes	$ 1,475,924	$ 1,421,276

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).