Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 9,094	$ 5,958
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	304	281
Foreign exchange (gain) loss	(10)	10
Amortization of deferred compensation related to restricted stock	119	166
Profit sharing expense funded through the issuance of treasury stock	150	75
(Gain) loss on sale of property and equipment	(40)	(5)
Proceeds from sale of demonstration equipment, net of gain	107	8
Deferred income tax benefit	(2,905)
Changes in assets and liabilities:
Trade accounts receivable	(601)	(2,540)
Inventories	(1,186)	(131)
Prepaid expenses and other current assets	60	(89)
Restricted certificates of deposit	200	(250)
Other assets	28	1
Accounts payable	62	(1,025)
Accrued wages and benefits	(63)	865
Accrued sales commissions	31	314
Accrued rent	320	(49)
Accrued professional fees	1	31
Accrued warranty	(43)	38
Accrued restructuring and other charges		(130)
Customer deposits	341	(32)
Other current liabilities	(121)	186
Deferred rent, net of current portion	(39)	(39)
Net cash provided by operating activities	5,809	3,643
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(685)	(84)
Proceeds from sale of property and equipment	40
Net cash used in investing activitites	(645)	(84)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock options exercised	30
Net cash provided by financing activities	30
Effects of exchange rates on cash	(25)	(9)
Net cash provided by all activities	5,169	3,550
Cash and cash equivalents at beginning of period	6,895	2,647
Cash and cash equivalents at end of period	12,064	6,197
Cash payments for:
Domestic and foreign income taxes	171	1
Interest	1
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Issuance of non-vested shares of restricted stock		448
Forfeiture of non-vested shares of restricted stock	$ (20)	$ (11)