Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$ 163	$ (3)
Cash flows from investing activities:
Purchases of equipment		(11)
Change in inventory used for rental	40	130
Net cash provided by investing activities	40	119
Cash flows from financing activities:
Net borrowings (repayments) on line of credit	96	(212)
Payments on capital leases and other obligations	(14)	(38)
Net cash provided by (used in) financing activities	82	(250)
Net increase (decrease) in cash	285	(134)
Cash at the beginning of the period	63us-gaap_Cash	323us-gaap_Cash
Cash at the end of the period	348us-gaap_Cash	189us-gaap_Cash
Supplemental cash flow information:
Interest paid	131us-gaap_InterestPaid	133us-gaap_InterestPaid
Income taxes paid (including interest and penalties)	$ 0us-gaap_IncomeTaxesPaid	$ 2us-gaap_IncomeTaxesPaid

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The net cash outflow or inflow from purchases, sales and disposals of property, plant and equipment and other productive assets, including intangibles.

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The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).

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