Notes Payable and Credit Arrangements	9 Months Ended
Sep. 30, 2013
Notes Payable and Credit Arrangements [Abstract]
Debt Disclosure [Text Block]	Notes Payable and Credit Arrangements The Company has two separate credit facilities with Silicon Valley Bank (the “Bank” or “SVB”): (i) a Second Amended and Restated Loan and Security Agreement (as amended, the "Revolving Credit Facility") and (ii) an Amended and Restated Export-Import Bank Loan and Security Agreement (as amended, the "Ex-Im Facility") pursuant to which outstanding amounts under this facility are guaranteed by the Export-Import Bank of the United States (the “EXIM Bank”). The credit facilities provide an aggregate amount of $1.5 million under both facilities, with up to $1.0 million available under the Revolving Credit Facility and up to $1.5 million available under the Ex-Im Facility. In addition, a guidance line supports letters of credit in an aggregate amount of up to $1.5 million through April 30, 2014. If the Company achieves certain levels of liquidity, based on cash on hand and availability under the credit facility, the Company will not be required to cash collateralize letters of credit issued under this guidance line. On September 3, 2013, the Company and the Bank entered into (i) the Sixth Loan Modification Agreement amending certain terms of the Second Amended and Restated Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Revolving Credit Facility”) and (ii) the Sixth Loan Modification Agreement amending certain terms of the Amended and Restated Export-Import Bank Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Ex-Im Facility”). Pursuant to the terms of the Sixth Loan Modification Agreements, the Company and the Bank agreed to extend the maturity date of the Revolving Credit Facility and the Ex-Im Facility to October 29, 2013. On November 18, 2013, the Company and the Bank entered into (i) the Seventh Loan Modification Agreement amending certain terms of the Second Amended and Restated Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Revolving Credit Facility”) and (ii) the Seventh Loan Modification Agreement amending certain terms of the Amended and Restated Export-Import Bank Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Ex-Im Facility”). Pursuant to the terms of the Seventh Loan Modification Agreements, the Company and the Bank agreed to (i) extend the maturity date of the Revolving Credit Facility and the Ex-Im Facility to from October 29, 2013 to April 30, 2014, (ii) effective November 18, 2013 amend the definition of the Financial Covenant by deleting the requirement to maintain liquidity of at least $1.25 million at all times based on cash on hand and availability under the credit facility and replacing it with a newly defined covenant whereby the Company shall maintain cash on hand of at least $2.5 million at all times, as long as any commitment remains outstanding under the facilities, and (iii) amend the definition of Streamline Facility Eligible to increase the liquidity requirement from $2.5 million to $3.5 million. The Company's obligations under these two credit facilities, as well as the guidance line, are secured by substantially all of the assets of the Company. Advances under the Revolving Credit Facility are limited to 80% of eligible receivables. Advances under the Ex-Im Facility are limited to (i) 90% of eligible receivables subject to a suitable foreign currency hedge agreement if applicable, plus (ii) 75% of all other eligible receivables billed in foreign currency, plus (iii) 50% of the value of eligible inventory, as defined. In addition, until all amounts under the credit facilities with the Bank are repaid, covenants under the credit facilities impose restrictions on the Company's ability to, among other things, incur additional indebtedness, create or permit liens on the Company's assets, merge, consolidate or dispose of assets (other than in the ordinary course of business), make dividend and other restricted payments, make certain debt or equity investments, make certain acquisitions, engage in certain transactions with affiliates or change the business conducted by the Company. Any failure by the Company to comply with the covenants and obligations under the credit facilities could result in an event of default, in which case the Bank may be entitled to declare all amounts owed to be due and payable immediately. Under the credit facilities, interest on outstanding borrowings accrues at a rate per annum equal to the greater of (i) the prime rate plus 2.5% or (ii) 7.0%. In addition, if the Company achieves certain levels of liquidity, based on cash on hand and availability under the credit facility, the Company will have a 0.5% lower interest rate. N2 Bio has has two separate agreements under one credit facility with Middlesex Savings Bank (“MSB”): (i) a Secured Term Loan and (ii) a Secured Revolving Demand Note. Under the Secured Term Loan, N2 Bio borrowed $6.0 million on September 18, 2013 to finance the purchase of the Bio Business Unit from the Company. The advance made under the Secured Term Loan will bear interest at a fixed rate of 4.5% per annum in eighty-four (84) consecutive monthly payments starting on October 18, 2013. If not sooner paid, the Secured Term Loan shall be due and payable in full on September 18, 2020. The Secured Revolving Demand Note provides an amount available of up to $1.0 million. Advances made under the Secured Revolving Demand Note will bear interest at MSB's prime rate, as determined, plus 0.5% per annum but in no event shall the interest rate be less than 3.75% per annum. The maturity date of the Secured Revolving Demand Note is September 18, 2014. N2 Bio's obligations under the credit facility, is secured by substantially all of the assets of N2 Bio. Advances under the Secured Revolving Demand Note are limited to 75% of eligible receivables. In addition, until all amounts under the credit facilities with MSB are repaid, covenants under the credit facilities impose restrictions on the N2 Bio's ability to, among other things, incur additional indebtedness, create or permit liens on the N2 Bio's assets, merge, consolidate or dispose of assets (other than in the ordinary course of business), make dividend and other restricted payments, make certain debt or equity investments, make certain acquisitions, engage in certain transactions with affiliates or change the business conducted by the N2 Bio. Any failure by N2 Bio to comply with the covenants and obligations under the credit facilities could result in an event of default, in which case MSB may be entitled to declare all amounts owed to be due and payable immediately. Advances outstanding under the Company's Revolving Credit Facility were $144 thousand and $449 thousand at September 30, 2013 and December 31, 2012, respectively. Advances outstanding under the Company's Ex-Im Facility were zero and $141 thousand at September 30, 2013 and December 31, 2012, respectively. Advances outstanding under the N2 Bio Secured Term Loan were $6.0 million at September 30, 2013. Advances outstanding under the N2 Bio Secured Revolving Demand Note were $437 thousand at September 30, 2013. As of September 30, 2013, the interest rate per annum on the Company's Revolving Credit Facility and Ex-Im Facility was 6.5% and 6.5%, respectively. The interest rate per annum on the N2 Bio Secured Term Loan and Secured Revolving Demand Note on September 30, 2013 was 4.5% and 3.75%, respectively. The Company had utilized $675 thousand of the guidance line at December 31, 2012. Combined availability under the Revolving Credit Facility, the Ex-Im Facility and the Secured Revolving Demand Note was $262 thousand as of September 30, 2013.

Notes Payable and Credit Arrangements

The Company has two separate credit facilities with Silicon Valley Bank (the “Bank” or “SVB”): (i) a Second Amended and Restated Loan and Security Agreement (as amended, the "Revolving Credit Facility") and (ii) an Amended and Restated Export-Import Bank Loan and Security Agreement (as amended, the "Ex-Im Facility") pursuant to which outstanding amounts under this facility are guaranteed by the Export-Import Bank of the United States (the “EXIM Bank”). The credit facilities provide an aggregate amount of $1.5 million under both facilities, with up to $1.0 million available under the Revolving Credit Facility and up to $1.5 million available under the Ex-Im Facility. In addition, a guidance line supports letters of credit in an aggregate amount of up to $1.5 million through April 30, 2014. If the Company achieves certain levels of liquidity, based on cash on hand and availability under the credit facility, the Company will not be required to cash collateralize letters of credit issued under this guidance line.

On September 3, 2013, the Company and the Bank entered into (i) the Sixth Loan Modification Agreement amending certain terms of the Second Amended and Restated Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Revolving Credit Facility”) and (ii) the Sixth Loan Modification Agreement amending certain terms of the Amended and Restated Export-Import Bank Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Ex-Im Facility”). Pursuant to the terms of the Sixth Loan Modification Agreements, the Company and the Bank agreed to extend the maturity date of the Revolving Credit Facility and the Ex-Im Facility to October 29, 2013.

On November 18, 2013, the Company and the Bank entered into (i) the Seventh Loan Modification Agreement amending certain terms of the Second Amended and Restated Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Revolving Credit Facility”) and (ii) the Seventh Loan Modification Agreement amending certain terms of the Amended and Restated Export-Import Bank Loan and Security Agreement dated as of November 16, 2009 (as amended, the “Ex-Im Facility”). Pursuant to the terms of the Seventh Loan Modification Agreements, the Company and the Bank agreed to (i) extend the maturity date of the Revolving Credit Facility and the Ex-Im Facility to from October 29, 2013 to April 30, 2014, (ii) effective November 18, 2013 amend the definition of the Financial Covenant by deleting the requirement to maintain liquidity of at least $1.25 million at all times based on cash on hand and availability under the credit facility and replacing it with a newly defined covenant whereby the Company shall maintain cash on hand of at least $2.5 million at all times, as long as any commitment remains outstanding under the facilities, and (iii) amend the definition of Streamline Facility Eligible to increase the liquidity requirement from $2.5 million to $3.5 million.

The Company's obligations under these two credit facilities, as well as the guidance line, are secured by substantially all of the assets of the Company. Advances under the Revolving Credit Facility are limited to 80% of eligible receivables. Advances under the Ex-Im Facility are limited to (i) 90% of eligible receivables subject to a suitable foreign currency hedge agreement if applicable, plus (ii) 75% of all other eligible receivables billed in foreign currency, plus (iii) 50% of the value of eligible inventory, as defined. In addition, until all amounts under the credit facilities with the Bank are repaid, covenants under the credit facilities impose restrictions on the Company's ability to, among other things, incur additional indebtedness, create or permit liens on the Company's assets, merge, consolidate or dispose of assets (other than in the ordinary course of business), make dividend and other restricted payments, make certain debt or equity investments, make certain acquisitions, engage in certain transactions with affiliates or change the business conducted by the Company. Any failure by the Company to comply with the covenants and obligations under the credit facilities could result in an event of default, in which case the Bank may be entitled to declare all amounts owed to be due and payable immediately.

Under the credit facilities, interest on outstanding borrowings accrues at a rate per annum equal to the greater of (i) the prime rate plus 2.5% or (ii) 7.0%. In addition, if the Company achieves certain levels of liquidity, based on cash on hand and availability under the credit facility, the Company will have a 0.5% lower interest rate.

N2 Bio has has two separate agreements under one credit facility with Middlesex Savings Bank (“MSB”): (i) a Secured Term Loan and (ii) a Secured Revolving Demand Note. Under the Secured Term Loan, N2 Bio borrowed $6.0 million on September 18, 2013 to finance the purchase of the Bio Business Unit from the Company. The advance made under the Secured Term Loan will bear interest at a fixed rate of 4.5% per annum in eighty-four (84) consecutive monthly payments starting on October 18, 2013. If not sooner paid, the Secured Term Loan shall be due and payable in full on September 18, 2020. The Secured Revolving Demand Note provides an amount available of up to $1.0 million. Advances made under the Secured Revolving Demand Note will bear interest at MSB's prime rate, as determined, plus 0.5% per annum but in no event shall the interest rate be less than 3.75% per annum. The maturity date of the Secured Revolving Demand Note is September 18, 2014.

N2 Bio's obligations under the credit facility, is secured by substantially all of the assets of N2 Bio. Advances under the Secured Revolving Demand Note are limited to 75% of eligible receivables. In addition, until all amounts under the credit facilities with MSB are repaid, covenants under the credit facilities impose restrictions on the N2 Bio's ability to, among other things, incur additional indebtedness, create or permit liens on the N2 Bio's assets, merge, consolidate or dispose of assets (other than in the ordinary course of business), make dividend and other restricted payments, make certain debt or equity investments, make certain acquisitions, engage in certain transactions with affiliates or change the business conducted by the N2 Bio. Any failure by N2 Bio to comply with the covenants and obligations under the credit facilities could result in an event of default, in which case MSB may be entitled to declare all amounts owed to be due and payable immediately.

Advances outstanding under the Company's Revolving Credit Facility were $144 thousand and $449 thousand at September 30, 2013 and December 31, 2012, respectively. Advances outstanding under the Company's Ex-Im Facility were zero and $141 thousand at September 30, 2013 and December 31, 2012, respectively. Advances outstanding under the N2 Bio Secured Term Loan were $6.0 million at September 30, 2013. Advances outstanding under the N2 Bio Secured Revolving Demand Note were $437 thousand at September 30, 2013. As of September 30, 2013, the interest rate per annum on the Company's Revolving Credit Facility and Ex-Im Facility was 6.5% and 6.5%, respectively. The interest rate per annum on the N2 Bio Secured Term Loan and Secured Revolving Demand Note on September 30, 2013 was 4.5% and 3.75%, respectively. The Company had utilized $675 thousand of the guidance line at December 31, 2012. Combined availability under the Revolving Credit Facility, the Ex-Im Facility and the Secured Revolving Demand Note was $262 thousand as of September 30, 2013.