Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities
Net loss	$ (1,581)	$ (353)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation and amortization	441	452
Deferred income tax benefit	(620)	(299)
Inventory provisions	10	144
Share-based payment arrangements	479	518
Shares issued for 401(k) match	153	129
Other	(19)	16
Changes in operating assets and liabilities:
Accounts receivable	98	(1,637)
Inventories	101	348
Prepaid expenses and other assets	(99)	(358)
Accounts payable and accrued expenses	(28)	549
Deferred revenue	347	(25)
Pension liability	(291)	(254)
Other liabilities	26	34
Net cash used in operating activities	(983)	(736)
Cash Flows from Investing Activities
Acquisitions of property and equipment	(323)	(539)
Net cash used in investing activities	(323)	(539)
Cash Flows from Financing Activities
Proceeds from exercise of stock options		89
Payments on capital lease obligations	(19)	(16)
Payments on term loan	(135)	(162)
Net cash used in financing activities	(154)	(89)
Change in cash and cash equivalents	(1,460)	(1,364)
Cash and cash equivalents at beginning of period	4,216	5,565
Cash and cash equivalents at end of period	$ 2,756	$ 4,201