Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities
Net loss	$ (917)	$ (951)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation and amortization	187	211
Deferred tax asset allowance	353
Deferred income tax benefit	(353)	(133)
Inventory provisions		10
Share-based payment arrangements	340	304
Shares issued for 401(k) match	70	78
Other	(130)	33
Changes in operating assets and liabilities:
Accounts receivable	19	349
Inventories	188	(2)
Prepaid expenses and other assets	(128)	(48)
Accounts payable and accrued expenses	348	(903)
Deferred revenue	(209)	56
Other liabilities	210	(316)
Net cash used in operating activities	(22)	(1,312)
Cash Flows From Investing Activities
Acquisitions of property and equipment	(72)	(79)
Net cash used in investing activities	(72)	(79)
Cash Flows From Financing Activities
Payments on term loan	(70)	(81)
Payments on capital lease obligations	(10)	(9)
Net cash used in financing activities	(80)	(90)
Change in cash and cash equivalents	(174)	(1,481)
Cash and cash equivalents at beginning of period	2,483	4,216
Cash and cash equivalents at end of period	$ 2,309	$ 2,735