Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 2,156	$ 9,863
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	933	394
Provision for excess and obsolete inventory	688	403
Foreign exchange (gain) loss	(12)	3
Amortization of deferred compensation related to restricted stock	113	146
Profit sharing expense funded through the issuance of treasury stock	150	150
Gain on sale of property and equipment		(48)
Proceeds from sale of demonstration equipment, net of gain	109	94
Deferred income tax expense (benefit)	443	(2,481)
Changes in assets and liabilities:
Trade accounts receivable	1,868	24
Inventories	948	(809)
Prepaid expenses and other current assets	(60)	126
Restricted certificates of deposit	50	200
Other assets	(3)	13
Accounts payable	(67)	(640)
Accrued wages and benefits	(237)	24
Accrued sales commissions	(227)	(29)
Accrued rent	122	324
Accrued professional fees	(66)	79
Deferred revenue and customer deposits	(171)	341
Other current liabilities	(92)	(316)
Deferred rent		(39)
Net cash provided by operating activities	6,645	7,822
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of business	(3,802)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Forfeiture of non-vested shares of restricted stock	(14)	(20)
Purchase of property and equipment	(431)	(780)
Proceeds from sale of property and equipment	19	54
Net cash used in investing activitites	(4,214)	(726)
CASH FLOWS FROM FINANCING ACTIVITIES
Cash dividends paid	(834)
Proceeds from stock options exercised		30
Net cash provided by (used in) financing activities	(834)	30
Effects of exchange rates on cash	22	(64)
Net cash provided by all activities	1,619	7,062
Cash and cash equivalents at beginning of period	13,957	6,895
Cash and cash equivalents at end of period	15,576	13,957
Cash payments for:
Domestic and foreign income taxes	379	269
Interest	8	1
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:
Forfeiture of non-vested shares of restricted stock	$ (14)	$ (20)