Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from (used in) operating activities
Net income	$ 74	$ 1,244
Adjustments to reconcile net income to net cash from (used in) operating activities:
Depreciation and amortization	235	264
Realized gain on sale of available-for-sale securities	0	(1,449)
Deferred income taxes	(26)	(34)
Stock-based compensation expense	66	47
Change in contingent earn-out fair value	(72)	(17)
Other	(18)	(7)
Change in:
Trade receivables	(149)	(176)
Inventories	47	(334)
Current assets, other	(17)	(12)
Accounts payable	21	50
Accrued expenses	11	85
Accrued income taxes/income tax receivable	(21)	110
Net cash from (used in) operating activities	151	(229)
Cash flows from (used in) investing activities
Proceeds from sale of available-for-sale securities	0	1,467
Purchases of treasury bills	(7,425)	(8,636)
Proceeds from the maturity of treasury bills	7,889	9,043
Purchase of property and equipment	(2)	(19)
Net cash from investing activities	462	1,855
Cash flows used in financing activities
Payments on long-term debt	(390)	(381)
Net cash used in financing activities	(390)	(381)
Net increase in cash and cash equivalents	223	1,245
Cash and cash equivalents, beginning	569	1,190
Cash and cash equivalents, ending	792	2,435
Supplemental cash flow information
Cash paid for income taxes	90	592
Cash paid for interest	$ 10	$ 19