Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from (used in) operating activities
Net income	$ 291	$ 74
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	233	235
Deferred income taxes	(62)	(26)
Stock-based compensation expense	48	66
Change in contingent earn-out fair value	(53)	(72)
Other	(21)	(18)
Change in:
Trade receivables	(272)	(149)
Inventories	(13)	47
Other current assets	(3)	(17)
Accounts payable	(106)	21
Accrued expenses	135	11
Income tax receivable/accrued income taxes	139	(21)
Net cash from operating activities	316	151
Cash flows from (used in) investing activities
Purchases of treasury bills	(5,956)	(7,425)
Proceeds from the maturity of treasury bills	6,000	7,889
Purchase of property and equipment	(15)	(2)
Net cash from investing activities	29	462
Cash flows used in financing activities
Payments on long-term debt	0	(390)
Net cash used in financing activities	0	(390)
Net increase in cash and cash equivalents	345	223
Cash and cash equivalents, beginning	840	569
Cash and cash equivalents, ending	1,185	792
Supplemental cash flow information
Cash paid for income taxes	125	90
Cash paid for interest	$ 0	$ 10