CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities:
Net income (loss)	$ 3,251	$ (9,259)	$ 184
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss from discontinued operations	91	2,587	1,497
Depreciation and amortization	5,070	4,791	4,744
Impairment charges	0	12,550	0
Stock based compensation	3,440	2,986	3,243
(Gain) loss on disposal/sale of property and equipment	(27)	4	22
Restructuring costs	86	0	0
Payment of withholding tax on stock based compensation	(1,098)	(1,204)	(1,255)
Deferred tax expense	2,165	(4,264)	610
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	1	(2,870)	(152)
Inventories	3,092	(2,361)	(3,122)
Prepaid expenses and other assets	596	863	1,455
Accounts payable	(6,149)	3,857	1,263
Income taxes payable	(61)	71	33
Accrued liabilities	946	(1,569)	(310)
Net cash provided by operating activities	11,403	6,182	8,212
Investing Activities:
Capital expenditures	(2,959)	(3,381)	(4,862)
Proceeds from disposal of property and equipment	3	0	0
Purchase of investments	(72,010)	(61,927)	(58,046)
Redemptions/maturities of short-term investments	69,501	77,718	55,607
Purchase of assets with settlement	0	0	(200)
Purchase of assets/businesses, net of cash acquired	0	(16,000)	(1,450)
Net cash used in investing activities	(5,465)	(3,590)	(8,951)
Financing Activities:
Proceeds from issuance of common stock	1,266	578	586
Payments for repurchase of common stock	(435)	0	(2,559)
Cash dividend	(2,579)	(2,202)	(545)
Net cash used in financing activities	(1,748)	(1,624)	(2,518)
Cash flows from discontinued operations:
Net cash used in operating activities	(17)	(1,136)	(1,341)
Net cash provided by investing activities	1	(1,731)	(7)
Net cash provided by financing activities	0	0	0
Net decrease in cash and cash equivalents	4,174	(1,899)	(4,605)
Effect of exchange rate changes on cash	57	40	25
Cash and cash equivalents, beginning of year	17,559	19,418	23,998
Cash and Cash Equivalents, End of Year	21,790	17,559	19,418
Other information:
Cash paid (refunds received) for income taxes	232	(1,288)	(1,472)
Cash paid for interest	16	3	0
Non-cash investing and financing information:
Decreases to deferred stock compensation, net	(1,968)	(616)	(903)
Issuance of restricted common stock, net of cancellations	$ (703)	$ 912	$ 1,008