Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 1,643	$ 1,295
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	438	426
Provision for excess and obsolete inventory	138	197
Foreign exchange loss	1	14
Amortization of deferred compensation related to restricted stock	74	58
Loss on sale of property and equipment	20	6
Proceeds from sale of demonstration equipment, net of gain	65	3
Deferred income tax expense	90	170
Changes in assets and liabilities:
Trade accounts receivable	(1,999)	(1,753)
Inventories	(768)	(423)
Prepaid expenses and other current assets	110	116
Other assets	(1)
Accounts payable	649	287
Accrued wages and benefits	(191)	(238)
Accrued rent	16	29
Accrued professional fees	(38)	1
Accrued sales commissions	127	194
Domestic and foreign income taxes payable	534	255
Other current liabilities	112	(96)
Net cash provided by operating activities	1,020	541
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(424)	(95)
Proceeds from sale of property and equipment	8
Net cash used in investing activitites	(416)	(95)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock options exercised		30
Net cash provided by financing activities		30
Effects of exchange rates on cash	(6)	(20)
Net cash provided by all activities	598	456
Cash and cash equivalents at beginning of period	19,018	15,576
Cash and cash equivalents at end of period	19,616	16,032
Cash payments for:
Domestic and foreign income taxes	199	137
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Issuance of non-vested shares of restricted stock	41	124
Forfeiture of non-vested shares of restricted stock	$ (20)