CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities
Net loss	$ (162)	$ (304)
Add back: Income from discontinued operations		(1,022)
Loss from continuing operations	(162)	(1,326)
Adjustment to reconcile net loss from continuing operations to net cash provided by (used in) operating activities:
Depreciation and amortization	783	902
Change in warrant liabilities	(68)	68
Changes in operating assets and liabilities:
Receivables	(855)	106
Inventories	165	(288)
Prepaids and other assets	79	(239)
Accounts payable and accrued liabilities	471	95
Deferred pension liability and other	(251)	142
Net cash provided by (used in) operating activities	162	(540)
Cash flows from investing activities
Equipment manufactured for rental	(19)
Purchases of property and equipment	(1)	(93)
Net cash used in investing activities	(20)	(93)
Cash flows from financing activities
Payments of long-term debt	(15)	(314)
Net cash used in financing activities	(15)	(314)
Cash flows from discontinued operations
Cash used in operating activities of discontinued operations		(53)
Cash provided by investing activities of discontinued operations		1,766
Cash used in financing activities of discontinued operations		(1,723)
Net cash used in discontinued operations		(10)
Net increase (decrease) in cash and cash equivalents	127	(957)
Cash and cash equivalents at beginning of year	55	1,164
Cash and cash equivalents at end of period	182	207
Supplemental disclosure of cash flow information:
Interest paid	7	38
Income taxes paid