Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings (loss)	$ 292	$ (43)
Depreciation and amortization	221	218
Provision for excess and obsolete inventory	110	150
Foreign exchange (gain) loss	8	(9)
Amortization of deferred compensation related to restricted stock	27	27
Loss on sale of property and equipment		3
Proceeds from sale of demonstration equipment, net of gain		52
Deferred income tax expense (benefit)	5	(6)
Changes in assets and liabilities:
Trade accounts receivable	(300)	(574)
Inventories	(395)	(187)
Prepaid expenses and other current assets	(24)	(19)
Other assets	(2)	(17)
Accounts payable	358	833
Accrued wages and benefits	(385)	(576)
Accrued sales commissions	14	(58)
Accrued rent	15	9
Accrued professional fees	21	(81)
Deferred revenue and customer deposits	(50)	(7)
Other current liabilities	(49)	199
Net cash used in operating activities	(134)	(86)
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of business		(3,802)
Purchase of property and equipment	(44)
Net cash used in investing activitites	(44)	(3,802)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock options exercised	30
Net cash provided by financing activities	30
Effects of exchange rates on cash	(44)	32
Net cash used in all activities	(192)	(3,856)
Cash and cash equivalents at beginning of period	15,576	13,957
Cash and cash equivalents at end of period	15,384	10,101
Cash payments for:
Domestic and foreign income taxes	113	27
Interest		4
Details of acquisition:
Fair value of assets acquired		4,026
Liabilities assumed		(274)
Goodwill resulting from acquisition		50
Net cash paid for acquisition		3,802
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Issuance of non-vested shares of restricted stock	$ 59