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Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from (used in) operating activities
Net income (loss)	$ (58)	$ 291
Adjustments to reconcile net income (loss) to net cash from (used in) operating activities:
Depreciation and amortization	238	233
Deferred income taxes	0	(62)
Stock-based compensation expense	7	48
Change in contingent earn-out fair value	0	(53)
Interest accrued on treasury bills	(78)	(21)
Change in:
Trade receivables	(142)	(272)
Inventories	(52)	(13)
Other current assets	(30)	(3)
Accounts payable	15	(106)
Accrued expenses	45	135
Income tax receivable	28	139
Net cash from (used in) operating activities	(27)	316
Cash flows from investing activities
Purchases of treasury bills	(10,654)	(5,956)
Proceeds from the maturity of treasury bills	10,750	6,000
Purchase of property and equipment	(29)	(15)
Net cash from investing activities	67	29
Cash flows used in financing activities
Payment of contingent earn-out	(150)	0
Net cash used in financing activities	(150)	0
Net increase (decrease) in cash and cash equivalents	(110)	345
Cash and cash equivalents, beginning	963	840
Cash and cash equivalents, ending	853	1,185
Supplemental cash flow information
Cash paid for income taxes	$ 0	$ 125

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