Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 381	$ 2,078
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	405	150
Adjustment to earnout payable	478
Adjustment to contingent consideration liability	1,248
Provision for excess and obsolete inventory	61	47
Foreign exchange gain	(74)	(12)
Amortization of deferred compensation related to stock-based awards	121	88
Loss on disposal of property and equipment	11
Proceeds from sale of demonstration equipment, net of gain	101	31
Deferred income tax benefit	(67)	(6)
Changes in assets and liabilities:
Trade accounts receivable	723	(4,423)
Inventories	(1,760)	(291)
Prepaid expenses and other current assets	(80)	(31)
Other assets	(6)	(5)
Accounts payable	1,248	465
Accrued wages and benefits	(1,037)	(400)
Accrued rent	(6)	(28)
Accrued professional fees	57	(11)
Accrued sales commissions	(107)	148
Customer deposits and deferred revenue	(121)	85
Domestic and foreign income taxes payable	575	1,050
Other current liabilities	128	65
Net cash provided by (used in) operating activities	2,279	(1,000)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(1,168)	(114)
Net cash used in investing activities	(1,168)	(114)
CASH FLOWS FROM FINANCING ACTIVITIES
Repurchases of common stock		(62)
Net cash used in financing activities		(62)
Effects of exchange rates on cash	37	20
Net cash provided by (used in) all activities	1,148	(1,156)
Cash and cash equivalents at beginning of period	13,290	28,611
Cash and cash equivalents at end of period	14,438	27,455
Cash payments for:
Domestic and foreign income taxes	$ 110	$ 39