CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net income	$ 688	$ 769
Adjustments to reconcile net income to net cash used in operating activities
Depreciation	275	228
Amortization of definite-lived intangible assets	156	425
Capitalized software amortization	368	394
Amortization of deferred financing costs	6	0
Change in fair value of contingent consideration	143	284
Stock-based compensation expense	447	386
Equity (gain) loss on investment in GSE-UNIS Simulation Technology Co. Ltd.	(134)	25
Gain on derivative instruments	(16)	(178)
Changes in assets and liabilities:
Contract receivables	(5,865)	(685)
Prepaid expenses and other assets	1,323	(466)
Accounts payable, accrued compensation and accrued expenses	(204)	(2,079)
Billings in excess of revenue earned	(838)	3
Accrued warranty reserves	163	220
Other liabilities	(303)	(889)
Net cash used in operating activities	(3,791)	(1,563)
Cash flows from investing activities:
Capital expenditures	(779)	(329)
Capitalized software development costs	(608)	(386)
Investment in GSE-UNIS Simulation Technology Co. Ltd.	(469)	(456)
Acquisitions, net of cash acquired	0	(830)
Restrictions of cash as collateral under letters of credit	(1,734)	(4,939)
Releases of cash as collateral under letters of credit	315	587
Drawdown of cash collateral on Emirates Simulation Academy, LLC line of credit	0	(79)
Net cash used in investing activities	(3,275)	(6,432)
Cash flows from financing activities:
Proceeds from issuance of common stock	221	119
Payments of the liability-classified contingent consideration arrangements	(806)	0
Treasury stock purchases	(303)	(336)
Net cash used in financing activities	(888)	(217)
Effect of exchange rate changes on cash	(106)	269
Net decrease in cash and cash equivalents	(8,060)	(7,943)
Cash and cash equivalents at beginning of year	20,326	26,577
Cash and cash equivalents at end of period	$ 12,266	$ 18,634