Consolidated Condensed Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ (4,739)	$ 377
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,847	1,629
Stock-based compensation	402	308
Loss on impairment of long-lived assets and goodwil of discontinued operations	983
Loss on disposition of property	4	26
Change in deferred gain	(83)	(73)
Change in allowance for doubtful accounts	(26)	(2)
Equity in loss of partnerships	184	77
Gain on sale of investment in partnership		(822)
Accounts receivable	1,106	240
Inventories	1,048	(66)
Other assets	208	(264)
Accounts payable	996	(1,497)
Accrued expenses	132	904
Other liabilities	133	198
Net cash provided by operating activities	2,195	1,035
Cash flows from investing activities:
Proceeds from sale of Global Coils		526
Purchases of property, plant and equipment	(444)	(1,448)
Net cash used in investing activities	(444)	(922)
Cash flows from financing activities:
Proceeds from long-term borrowings	12,140	12,200
Repayments of long-term borrowings	(13,389)	(12,578)
Proceeds from employee stock purchases and exercise of stock options	79	133
Change in restricted cash	(8)	9
Change in checks written in excess of cash	(637)	241
Net cash (used in) provided by financing activities	(1,815)	5
Effect of exchange rate changes on cash	35	7
Net increase (decrease) in cash	(29)	125
Cash, beginning of period	225	119
Cash, end of period	$ 196	$ 244