Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from (used in) operating activities
Net income	$ 139	$ 51
Adjustments to reconcile net income to net cash from (used in) operating activities:
Depreciation and amortization	156	157
Deferred income taxes	(66)	(21)
Stock-based compensation expense	35	48
Change in contingent earn-out fair value	(53)	(72)
Other	(7)	(15)
Change in:
Trade receivables	(562)	(346)
Inventories	37	47
Other current assets	54	40
Accounts payable	(25)	42
Accrued expenses	148	2
Income tax receivable/accrued income taxes	183	47
Net cash used in operating activities	39	(20)
Cash flows from (used in) investing activities
Purchases of treasury bills	(3,972)	(3,440)
Proceeds from the maturity of treasury bills	4,000	3,843
Purchase of property and equipment	(12)	(2)
Net cash from investing activities	16	401
Cash flows used in financing activities
Payments on long-term debt	0	(390)
Net cash used in financing activities	0	(390)
Net increase (decrease) in cash and cash equivalents	55	(9)
Cash and cash equivalents, beginning	840	569
Cash and cash equivalents, ending	895	560
Supplemental cash flow information
Cash paid for income taxes	0	5
Cash paid for interest	$ 0	$ 10