Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating activities
Net income (loss)	$ 1,729	$ (628)
Adjustments to reconcile net loss to net cash provided by operating activities:
Allowance for doubtful accounts	(5)	0
Inventories reserve	6	107
Deferred tax obligation	938	0
Depreciation and amortization	975	1,059
Share-based compensation expense	23	131
Changes in operating assets and liabilities:
Accounts receivable	(449)	633
Inventories	(174)	(385)
Prepaid expenses and other current assets	(411)	198
Other assets	(119)	34
Accounts payable	795	(1,279)
Accrued compensation and related taxes	739	61
Accrued warranty expense	(24)	31
Note payable	35	0
Deferred revenue	55	226
Accrued other expenses and other current liabilities	(87)	59
Net cash provided by operating activities	4,026	247
Investing activities
Purchases of property, plant and equipment	(349)	(198)
Capitalized software	(160)	0
Net cash used in investing activities	(509)	(198)
Financing activities
Proceeds from issuance of common stock	22	0
Increase in revolving line of credit	0	1,500
Decrease in revolving line of credit	0	(1,700)
Cash provided by (used in) financing activities	22	(200)
Net change in cash and cash equivalents	3,539	(151)
Cash and cash equivalents, beginning of period	2,693	5,050
Cash and cash equivalents, end of period	6,232	4,899
Supplemental disclosure
Cash paid for interest	3	90
Income tax paid	62	0
Non-cash financing activity
Cashless exercise of stock options and related conversion of net shares to stockholders' equity	$ 4	$ 6