Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities
Net loss	$ (1,418)	$ (7,036)
(Loss) income from discontinued operations	(224)	62
Loss from continuing operations	(1,194)	(7,098)
Adjustment to reconcile loss from continuing operations to net cash (used in) provided by operating activities:
Depreciation and amortization	4,615	5,303
Stock compensation expense	24	22
Gain on debt extinguishment	(8,796)
Change in warrant liabilities	3,655
Non-cash restructuring costs		480
Write-off of engineering software, net		456
Changes in operating assets and liabilities:
Receivables	858	(1,209)
Inventories	1,977	297
Prepaids and other assets	(508)	248
Accounts payable and accrued liabilities	(1,081)	2,821
Deferred pension liability and other	(83)	400
Net cash (used in) provided by operating activities of continuing operations	(533)	1,720
Cash flows from investing activities
Equipment manufactured for rental	(408)	(1,264)
Purchases of property, plant and equipment	(64)	(161)
Net cash used in investing activities of continuing operations	(472)	(1,425)
Cash flows from financing activities
Payments of long-term debt	(6,784)	(1,300)
Proceeds from long-term debt	650	830
Net proceeds from issuance of preferred stock and warrants	7,850
Net cash provided by (used in) financing activities of continuing operations	1,716	(470)
Cash flows from discontinued operations
Cash provided by operating activities of discontinued operations		32
Net cash provided by discontinued operations		32
Net increase (decrease) in cash and cash equivalents	711	(143)
Cash and cash equivalents at beginning of year	398	541
Cash and cash equivalents at end of year	1,109	398
Supplemental disclosure of cash flow information:
Interest paid	460	538
Supplemental non-cash financing activities:
Exchange of 8¼% Notes for Common Stock	$ 561