Credit Facility	9 Months Ended
Sep. 30, 2011
Credit Facility [Abstract]
Short-term Debt [Text Block]	Credit Facility On December 10, 2010, we paid off our existing term loan and line of credit and established a new $20 million senior secured revolving credit facility (subject to a right, on an uncommitted basis, to increase the commitments thereunder up to $40 million) with JPMorgan Chase Bank, N.A. (the “Credit Agreement”). The Credit Agreement provides us with an aggregate initial commitment amount of $20 million, subject to collateral availability. The terms of the Credit Agreement also include: Borrowing Base. At any time before the maturity of the facility, we may draw, repay and re-borrow amounts available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) 80% of our eligible accounts receivable plus (b) 50% of the book value of our eligible general inventory (not to exceed 50% of the commitment amount at the time) plus (c) 75% of the book value of our eligible equipment inventory. JPMorgan Chase Bank (the “Lender”) may adjust the borrowing base components if material deviations in the collateral are discovered in future audits of the collateral. The net borrowing base was $19.9 million at September 30, 2011. Interest and Fees. Under the terms of the Credit Agreement, we have the option of selecting the applicable variable rate for each revolving loan, or portion thereof, of either (a) LIBOR multiplied by the Statutory Reserve Rate (as defined in the Credit Agreement) to which the Lender is subject, with respect to this rate, for Eurocurrency funding, plus the Applicable Margin (“LIBOR-based”), or (b) CB Floating Rate, which is the Lender’s Prime Rate less the Applicable Margin; provided, however, that no more than three LIBOR-based borrowings under the facility may be outstanding at any one time. The “Applicable Margin” is based on our leverage ratio (debt-to-EBITDA). For purposes of the LIBOR-based interest rate, the Applicable Margin ranges from 2.25% if our leverage ratio exceeds 2.00x to 1.75% if our leverage ratio is less than 1.00x. For purposes of the CB Floating Rate, the Applicable Margin ranges from 0.50% if our leverage ratio exceeds 2.00x to 1.00% if our leverage ratio is less than 1.00x. The interest rate was 1.98% at September 30, 2011. Accrued interest is payable monthly on outstanding principal amounts, provided that accrued interest on LIBOR-based loans is payable at the end of each interest period, but in no event less frequently than quarterly. In addition, fees and expenses are payable in connection with our requests for letters of credit (generally equal to the Applicable Margin for LIBOR-related borrowings multiplied by the face amount of the requested letter of credit) and administrative and legal costs. Maturity. The maturity date of the secured revolving credit facility under the Credit Agreement is December 31, 2011, at which time all amounts borrowed under the facility will be due and outstanding letters of credit must be cash collateralized. The facility may be terminated early upon our request or the occurrence of an event of default. We are currently reviewing the terms of a new agreement and expect to have a replacement credit facility in place prior to the expiration of our current facility. Security. The obligations under the Credit Agreement are secured by a first priority lien equal to approximately two times the loan commitment as represented by our rental fleet equipment. Covenants. The Credit Agreement contains customary representations and warranties, as well as covenants which, among other things, limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge or effect asset sales; or change the nature of our business. In addition, we have certain financial covenants that require us to maintain on a consolidated basis a leverage ratio less than or equal to 2.50 to 1.00 as of the last day of each fiscal quarter. Events of Default and Acceleration. The Credit Agreement contains customary events of default for credit facilities of this size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the loan documents; inaccuracies in representations and warranties; certain defaults, termination events or similar events; certain defaults with respect to any other Company indebtedness in excess of $50,000; certain bankruptcy or insolvency events; the rendering of certain judgments in excess of $150,000; certain ERISA events; certain change in control events and the defectiveness of any liens under the secured revolving credit facility. Obligations under the Credit Agreement may be accelerated upon the occurrence of an event of default. In connection with establishing the credit facility, we paid $2,816,106 to our former lender which represented payment in full of the principal and interest owed under our term loan with it. In making this payment, we drew $2,000,000 on the line of credit under the Credit Agreement described above. At September 30, 2011 our balance on the line of credit was $1,916,667. As of September 30, 2011, we were in compliance with all covenants in our Credit Agreement. A default under our Credit Agreement could trigger the acceleration of our bank debt so that it is immediately due and payable. Such default would likely limit our ability to access other credit.

Credit Facility

On December 10, 2010, we paid off our existing term loan and line of credit and established a new $20 million senior secured revolving credit facility (subject to a right, on an uncommitted basis, to increase the commitments thereunder up to $40 million) with JPMorgan Chase Bank, N.A. (the “Credit Agreement”).

The Credit Agreement provides us with an aggregate initial commitment amount of $20 million, subject to collateral availability. The terms of the Credit Agreement also include:

Borrowing Base. At any time before the maturity of the facility, we may draw, repay and re-borrow amounts available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) 80% of our eligible accounts receivable plus (b) 50% of the book value of our eligible general inventory (not to exceed 50% of the commitment amount at the time) plus (c) 75% of the book value of our eligible equipment inventory. JPMorgan Chase Bank (the “Lender”) may adjust the borrowing base components if material deviations in the collateral are discovered in future audits of the collateral. The net borrowing base was $19.9 million at September 30, 2011.

Interest and Fees. Under the terms of the Credit Agreement, we have the option of selecting the applicable variable rate for each revolving loan, or portion thereof, of either (a) LIBOR multiplied by the Statutory Reserve Rate (as defined in the Credit Agreement) to which the Lender is subject, with respect to this rate, for Eurocurrency funding, plus the Applicable Margin (“LIBOR-based”), or (b) CB Floating Rate, which is the Lender’s Prime Rate less the Applicable Margin; provided, however, that no more than three LIBOR-based borrowings under the facility may be outstanding at any one time. The “Applicable Margin” is based on our leverage ratio (debt-to-EBITDA). For purposes of the LIBOR-based interest rate, the Applicable Margin ranges from 2.25% if our leverage ratio exceeds 2.00x to 1.75% if our leverage ratio is less than 1.00x. For purposes of the CB Floating Rate, the Applicable Margin ranges from 0.50% if our leverage ratio exceeds 2.00x to 1.00% if our leverage ratio is less than 1.00x. The interest rate was 1.98% at September 30, 2011.

Accrued interest is payable monthly on outstanding principal amounts, provided that accrued interest on LIBOR-based loans is payable at the end of each interest period, but in no event less frequently than quarterly. In addition, fees and expenses are payable in connection with our requests for letters of credit (generally equal to the Applicable Margin for LIBOR-related borrowings multiplied by the face amount of the requested letter of credit) and administrative and legal costs.

Maturity. The maturity date of the secured revolving credit facility under the Credit Agreement is December 31, 2011, at which time all amounts borrowed under the facility will be due and outstanding letters of credit must be cash collateralized. The facility may be terminated early upon our request or the occurrence of an event of default. We are currently reviewing the terms of a new agreement and expect to have a replacement credit facility in place prior to the expiration of our current facility.

Security. The obligations under the Credit Agreement are secured by a first priority lien equal to approximately two times the loan commitment as represented by our rental fleet equipment.

Covenants. The Credit Agreement contains customary representations and warranties, as well as covenants which, among other things, limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge or effect asset sales; or change the nature of our business.

In addition, we have certain financial covenants that require us to maintain on a consolidated basis a leverage ratio less than or equal to 2.50 to 1.00 as of the last day of each fiscal quarter.

Events of Default and Acceleration. The Credit Agreement contains customary events of default for credit facilities of this size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the loan documents; inaccuracies in representations and warranties; certain defaults, termination events or similar events; certain defaults with respect to any other Company indebtedness in excess of $50,000; certain bankruptcy or insolvency events; the rendering of certain judgments in excess of $150,000; certain ERISA events; certain change in control events and the defectiveness of any liens under the secured revolving credit facility. Obligations under the Credit Agreement may be accelerated upon the occurrence of an event of default.

In connection with establishing the credit facility, we paid $2,816,106 to our former lender which represented payment in full of the principal and interest owed under our term loan with it. In making this payment, we drew $2,000,000 on the line of credit under the Credit Agreement described above. At September 30, 2011 our balance on the line of credit was $1,916,667.

As of September 30, 2011, we were in compliance with all covenants in our Credit Agreement. A default under our Credit Agreement could trigger the acceleration of our bank debt so that it is immediately due and payable. Such default would likely limit our ability to access other credit.