Condensed Consolidated Statements of Cash Flows Statement (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Loss from continuing operations	$ 2,647	$ 1,121
Loss from discontinued operation	(125)	485
Net income	2,522	1,606
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	777	1,080
Allowance for doubtful accounts	89	35
Stock-based compensation expense	57	(110)
Reduction of previously-estimated asset disposal loss	(29)	(339)
Deferred income taxes, net of valuation allowances	415	474
Changes in operating assets and liabilities:
Trade receivables	11,798	8,302
Inventories	(1,835)	(529)
Prepaids and other current assets	1,009	1,753
Income taxes	(253)	23
Trade payables	(5,129)	(9,817)
Accrued liabilities, including warranty obligations	(1,268)	265
Net cash provided by (used in) operating activities	8,153	2,743
Cash flows from investing activities:
Proceeds from sale of discontinued operation	109	500
Purchases of software and equipment	(489)	(403)
Net decrease in restricted cash	0	(7)
Net cash provided by (used in) investing activities	(380)	90
Cash flows from financing activity:
Proceeds from long-term borrowings	(5,000)	0
Financing costs	0	(36)
Proceeds from exercise of stock options	89	0
Net cash used in financing activities	(4,911)	(36)
Net effect of currency exchange rate changes	108	(527)
Net increase (decrease) in cash and cash equivalents	2,970	2,270
Cash and cash equivalents, beginning of year	17,427	14,296
Cash and cash equivalents, end of period	20,397	16,566
Supplemental disclosure of cash flow information:
Cash paid for interest	520	0
Cash refunded for income taxes, net of payments	$ 41	$ (20)