CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net income (loss)	$ (10,511)	$ 1,174	$ 2,801
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Goodwill impairment loss	4,462	0	0
Write down of capitalized software development costs	2,174	0	0
Depreciation	570	562	497
Amortization of definite-lived intangible assets	207	313	948
Capitalized software amortization	541	704	813
Amortization of deferred financing costs	10	12	2
Change in fair value of contingent consideration	254	354	(322)
Stock-based compensation expense	810	914	727
Equity loss on investments	156	238	41
(Gain) loss on derivative instruments	(265)	121	68
Deferred income taxes	(262)	86	(1,143)
Changes in assets and liabilities
Contract receivables	(26)	(3,331)	(2,099)
Prepaid expenses and other assets	204	1,293	(351)
Accounts payable, accrued compensation and accrued expenses	(1,947)	1,403	(855)
Billings in excess of revenue earned	531	792	856
Accrued warranty reserves	(256)	(193)	620
Other liabilities	172	(702)	(1,035)
Net cash (used in) provided by operating activities	(3,176)	3,740	1,568
Cash flows from investing activities
Capital expenditures	(399)	(1,551)	(520)
Capitalized software development costs	(1,309)	(1,315)	(838)
Investment in GSE-RUS LLC	(46)	0	0
Investment in GSE-UNIS Simulation Technology Co. Ltd.	0	(469)	(456)
Acquisition, net of cash acquired	0	0	(830)
Restrictions of cash as collateral under letters of credit	(228)	(1,777)	(5,668)
Releases of cash as collateral under letters of credit	1,099	4,244	1,717
Drawdown of cash collateral on Emirates Simulation Academy, LLC line of credit	0	0	(78)
Net cash used in investing activities	(883)	(868)	(6,673)
Cash flows from financing activities
Proceeds from issuance of common stock	44	272	143
Treasury stock purchases	(819)	(531)	(1,649)
Payments of the liability-classified contingent consideration arrangements	(1,899)	(845)	(167)
Release of cash for credit facility collateral	0	0	600
Deferred financing costs	0	0	(24)
Net cash used in financing activities	(2,674)	(1,104)	(1,097)
Effect of exchange rate changes on cash	(10)	292	(49)
Net increase (decrease) in cash and cash equivalents	(6,743)	2,060	(6,251)
Cash and cash equivalents at beginning of year	22,386	20,326	26,577
Cash and cash equivalents at end of period	$ 15,643	$ 22,386	$ 20,326