Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from (used in) operating activities
Net income	$ 1,244	$ 915
Adjustments to reconcile net income to net cash from (used in) operating activities:
Depreciation and amortization	264	120
Realized gain on sale of available-for-sale securities	(1,449)	(1,008)
Deferred income taxes	(34)	(17)
Stock-based compensation expense	47	51
Change in contingent earn-out fair value	(17)	0
Other	(7)	(1)
Change in, net of acquisition:
Trade receivables	(176)	(127)
Inventories	(334)	(205)
Current assets, other	(12)	1
Accounts payable	50	157
Accrued expenses	85	180
Accrued income taxes	110	51
Net cash from (used in) operating activities	(229)	117
Cash flows from (used in) investing activities
Proceeds from sale of available-for-sale securities	1,467	1,020
Purchases of treasury bills	(8,636)	(9,676)
Proceeds from the maturity of treasury bills	9,043	8,362
Cash paid for acquisition	0	(400)
Purchase of property and equipment	(19)	(45)
Net cash from (used in) investing activities	1,855	(739)
Cash flows from (used in) financing activities
Proceeds from issuance of common stock	0	4
Payments on long-term debt	(381)	0
Net cash from (used in) financing activities	(381)	4
Net increase (decrease) in cash and cash equivalents	1,245	(618)
Cash and cash equivalents, beginning	1,190	1,505
Cash and cash equivalents, ending	2,435	887
Supplemental cash flow information
Cash paid for income taxes	592	462
Cash paid for interest	19	0
Supplemental disclosures of non-cash investment and financing activities
Note payable issued to fund acquisition, net of discount	0	771
Contingent earn-out recorded in connection with the acquisition	$ 0	$ 472