CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
OPERATING ACTIVITIES
NET INCOME (LOSS)	$ 148	$ (78)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	464	537
Amortization of finite-lived intangible assets	56	50
Gain on disposal of assets		(110)
Stock-based compensation	22	(4)
Gain on sale of marketable securities	(21)
Bargain purchase gain		(4)
Deferred income tax provision	12	0
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable, net	267	(450)
Increase in inventories, net	(269)	(121)
Increase in prepaid expenses and other assets	(148)	(36)
(Decrease) increase in accounts payable, accrued compensation and commissions and other accrued liabilities	(345)	484
Net cash provided by operating activities	186	268
INVESTING ACTIVITIES
Purchase of marketable securities	(1,002)	0
Acquisition of a business		(295)
Proceeds from sale of marketable securities	34
Capital expenditures	(20)	(112)
Other	0	43
Net cash used in investing activities	(988)	(364)
FINANCING ACTIVITIES
Purchase of treasury stock		(4)
Net cash used in financing activities		(4)
Decrease in cash and cash equivalents	(802)	(100)
Cash and cash equivalents at beginning of period	2,778	5,553
Cash and cash equivalents at end of period	1,976	5,453
Supplemental Disclosure:
Cash paid for interest	23	17
Cash paid for income taxes	$ 26	$ 38