Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (4,060,000)	$ 4,064,000	$ 34,708,000
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	1,708,000	1,142,000	1,552,000
Provision for doubtful accounts	67,000		(100,000)
Deferred income taxes	3,137,000	3,102,000	(30,358,000)
Share-based compensation	1,593,000	1,512,000	1,469,000
Excess tax benefits from stock options	(295,000)	(43,000)	31,000
Lease abandonment		(400,000)
(Gain) loss on disposal of fixed assets	(10,000)	0	9,000
Accretion of contingent earnout consideration	1,710,000
Changes in operating accounts, net of acquisitions:
Accounts receivable	1,548,000	(4,839,000)	(1,508,000)
Prepaid expenses and other current assets	(286,000)	(119,000)	476,000
Other assets	(8,000)	44,000	(5,000)
Accounts payable	100,000	(364,000)	87,000
Accrued liabilities	(1,697,000)	1,867,000	(374,000)
Deferred revenue	(246,000)	(198,000)	(1,254,000)
Net cash provided by operating activities	3,261,000	5,768,000	4,733,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of intellectual property			(200,000)
Capitalization of product development costs		(40,000)	(296,000)
Purchases of property and equipment	(333,000)	(220,000)	(311,000)
Net cash used in investing activities	(24,467,000)	(260,000)	(807,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from employee stock purchase plans and stock option exercises	1,488,000	1,900,000	1,278,000
Borrowings under revolving credit facility	5,000,000
Excess tax benefits from stock options	295,000	43,000	(31,000)
Purchases of treasury stock	(332,000)	(967,000)	(1,513,000)
Net cash provided by (used in) financing activities	6,451,000	976,000	(266,000)
Effects of exchange rates on cash	(32,000)	(37,000)	10,000
Net increase in cash and cash equivalents	(14,787,000)	6,447,000	3,670,000
CASH AND CASH EQUIVALENTS, beginning of period	26,768,000	20,321,000	16,651,000
CASH AND CASH EQUIVALENTS, end of period	11,981,000	26,768,000	20,321,000
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest	18,000	16,000
Cash paid for income taxes	208,000	606,000	266,000
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Issuance of restricted stock awards	728,000	$ 678,000	$ 1,051,000
Zero2Ten [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Net cash used to acquire Zero2Ten/Branchbird/M2 Dynamics	(4,643,000)
Branchbird [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Net cash used to acquire Zero2Ten/Branchbird/M2 Dynamics	(2,755,000)
M2 Dynamics [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Net cash used to acquire Zero2Ten/Branchbird/M2 Dynamics	$ (16,736,000)