Consolidated Statements Of Cash Flow (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating activities:
Net income (loss)	$ (10,017)	$ 3,005	$ 3,865
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	548	498	424
Amortization	1,650	1,218	768
Tax benefit from disqualifying disposition	37	72
Stock-based compensation	412	342	341
Goodwill impairment	11,685
Earn-out income	(618)
Deferred income tax expense (benefit)	(3,620)	174	138
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable, net	(11)	(3,711)	960
Inventories	(1,493)	(1,309)	(1,126)
Prepaid expenses and other receivables	281	(1,229)	(212)
Accounts payable	(96)	391	702
Accrued liabilities	(284)	832	(384)
Income taxes payable	215	(250)	(87)
Net cash provided by (used in) operating activities	(1,311)	33	5,389
Investing activities:
Payments for acquisition		(8,316)
Payment of earn-outs	(2,361)	(1,541)	(1,192)
Purchases of marketable securities	(7,340)	(8,882)	(6,640)
Sales and maturities of marketable securities	9,201	8,863	6,705
Purchases of property and equipment	(859)	(380)	(694)
Net cash used in investing activities	(1,359)	(10,256)	(1,821)
Financing activities:
Net proceeds from common stock offering		8,818
Proceeds from exercise of stock options	105	121	1
Proceeds from bank debt			4,000
Repayment of bank debt		(4,556)	(3,750)
Net cash provided by financing activities	105	4,383	251
Effect of exchange rate changes on cash	(232)	(223)	(24)
Increase (decrease) in cash and cash equivalents	(2,797)	(6,063)	3,795
Cash and cash equivalents at beginning of year	8,021	14,084	10,289
Cash and cash equivalents at end of year	5,224	8,021	14,084
Supplemental disclosure:
Income taxes paid, net of refunds	57	1,571	1,488
Interest paid	6	155	33
Supplemental non-cash disclosure:
Common stock issued in connection with CitySync acquisition		727
EIS earn-out payable recorded as additional goodwill		$ 1,665	$ 1,541