Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from (used in) operating activities
Net income	$ 1,214	$ 1,094
Adjustments to reconcile net income to net cash from (used in) operating activities:
Depreciation and amortization	348	209
Realized gain on sale of available-for-sale securities	(1,449)	(1,163)
Deferred income taxes	(104)	(81)
Change in contingent earn-out fair value	(17)	0
Stock-based compensation expense	63	67
Other	(1)	1
Change in operating assets and liabilities, net of acquisition:
Trade receivables	51	6
Inventories	(340)	(164)
Current assets, other	(7)	18
Accounts payable	10	67
Accrued expenses	4	127
Accrued income taxes	(78)	82
Net cash from (used in) operating activities	(306)	263
Cash flows from (used in) investing activities
Proceeds from sale of available-for-sale securities	1,467	1,178
Purchase of treasury bills	(12,674)	(14,184)
Proceeds from the maturity of treasury bills	11,343	12,871
Cash paid for acquisition	0	(400)
Purchase of property and equipment	(70)	(46)
Net cash from (used in) investing activities	66	(581)
Cash flows from (used in) financing activities
Proceeds from issuance of common stock	0	3
Payments on long-term debt	(381)	0
Net cash from (used in) financing activities	(381)	3
Net decrease in cash and cash equivalents	(621)	(315)
Cash and cash equivalents, beginning	1,190	1,505
Cash and cash equivalents, ending	569	1,190
Supplemental cash flow information
Cash paid during the year for income taxes	712	462
Cash paid during the year 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 at fair value in connection with the acquisition	$ 0	$ 472