Subsequent Events	12 Months Ended
Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	14. Subsequent Events On February 8, 2017, the Company entered into Loan and Security Agreements with each of East West Bank ("EWB") and Venture Lending & Leasing VII, Inc. and Venture Lending & Leasing VIII, Inc. (collectively referred to as “VLL7 and VLL8”). The Loan and Security Agreement with EWB provides for a $10.0 million revolving loan facility ("Revolving Loan Facility"), and the Loan Security Agreement with VLL7 and VLL8 provides for a term loan in aggregate principal amount of $10.0 million (the "Term Loan"). The obligations of the Company under each of the Revolving Loan Facility and the Term Loan and Security Agreements are secured by substantially all assets of the Company. The Revolving Loan Facility bears interest at prime rate plus 2.0% and matures and becomes due and payable on February 8, 2019. Interest is payable monthly beginning on March 1, 2017. The Company may voluntarily prepay amounts outstanding under the Revolving Loan Facility, without prepayment charges. In the event the Revolving Loan Facility is terminated prior to its maturity, the Company would be required to pay an early termination fee in the amount of 1.0% of the revolving line, and an additional cash early termination fee of 1.0% if terminated prior to February 8, 2018. Additional borrowing requests under the Revolving Loan Facility are subject to various customary conditions precedent, including satisfaction of a borrowing base test as more fully described in the Revolving Loan Facility. The Term Loan matures on August 8, 2020. Payments under the Term Loan are interest-only for the first twelve months at a per annum rate of 12.5%, followed by principal and interest payments amortized over the remaining term of the Term Loan. If the Company elects to prepay the Term Loan before its maturity, all accrued and unpaid interest outstanding at the prepayment date will be due and payable, together with all the scheduled interest that would have accrued and been payable through the stated maturity of the Term Loan, provided that at any time after the Company has made at least twelve scheduled amortization payments of principal and interest on the Term Loan the Company shall only be required to pay 80% of the scheduled interest that would have accrued and been payable through the stated maturity of the Term Loan, The Company is obligated to pay customary fees and expenses, including customary facility fees for credit facilities of this size and type, in the aggregate amount of approximately $120,000, in connection with the closing of the two facilities. An additional facility fee of $40,000 will be payable in connection with the Revolving Loan Facility on the February 8, 2018. Each of the Revolving Loan Facility and the Term Loan contain customary representations and warranties and customary affirmative and negative covenants, including, limits or restrictions on the Company's ability to incur liens, incur indebtedness, make certain restricted payments, merge or consolidate and dispose of assets. The Revolving Loan Facility also contains various financial covenants as set forth in the Revolving Loan Facility, including but not limited to a liquidity covenant requiring the Company to maintain at least $4.0 million of cash. In addition, each of the Revolving Loan Facility and the Term Loan contains customary events of default that entitle the EWB or VLL7 and VLL8, as appropriate, to cause any or all of the Company's indebtedness under the Revolving Loan Facility or the Term Loan, respectively, to become immediately due and payable. The events of default (some of which are subject to applicable grace or cure periods), include, among other things, non-payment defaults, covenant defaults, cross-defaults to other material indebtedness, bankruptcy and insolvency defaults and material judgment defaults. Upon the occurrence and during the continuance of an event of default, EWB and VLL7 and VLL8 may terminate their lending commitments and/or declare all or any part of the unpaid principal of all loans, all interest accrued and unpaid thereon and all other amounts payable under the Loan and Security Agreements to be immediately due and payable. The proceeds of the Term Loan and the initial draw under Revolving Loan Facility and after payment of fees and expenses, were used to repay all outstanding amounts under the Credit Agreement with Opus. In connection with the repayment, warrants to purchase an aggregate of 400,000 shares of common stock issued to Opus were cancelled. The proceeds of any additional draws under the Revolving Loan Facility will be used for working capital and other general corporate purposes. In connection with the Company's entry into the Revolving Loan Facility and Term Loan, the Company issued to EWB a warrant (the "EWB Warrant") to purchase up to 40,000 shares of the Company's common stock at a per share exercise price of $3.64, and issued to each of VLL7 and VLL8 a warrant to purchase 290,000 shares of the Company's common stock at a per share exercise price of $2.00 (the “VLL7 Warrant” and the “VLL8 Warrant,” respectively). Each of the EWB Warrant, the VLL7 Warrant and the VLL8 Warrant is immediately exercisable for cash or by net exercise and will expire five years after its issuance, or on February 8, 2022. The Company has granted registration rights on substantially similar terms given to the Prior Lender to the holders of each of the warrants.

14. Subsequent Events

On February 8, 2017, the Company entered into Loan and Security Agreements with each of East West Bank ("EWB") and Venture Lending & Leasing VII, Inc. and Venture Lending & Leasing VIII, Inc. (collectively referred to as “VLL7 and VLL8”). The Loan and Security Agreement with EWB provides for a $10.0 million revolving loan facility ("Revolving Loan Facility"), and the Loan Security Agreement with VLL7 and VLL8 provides for a term loan in aggregate principal amount of $10.0 million (the "Term Loan"). The obligations of the Company under each of the Revolving Loan Facility and the Term Loan and Security Agreements are secured by substantially all assets of the Company.

The Revolving Loan Facility bears interest at prime rate plus 2.0% and matures and becomes due and payable on February 8, 2019. Interest is payable monthly beginning on March 1, 2017. The Company may voluntarily prepay amounts outstanding under the Revolving Loan Facility, without prepayment charges. In the event the Revolving Loan Facility is terminated prior to its maturity, the Company would be required to pay an early termination fee in the amount of 1.0% of the revolving line, and an additional cash early termination fee of 1.0% if terminated prior to February 8, 2018. Additional borrowing requests under the Revolving Loan Facility are subject to various customary conditions precedent, including satisfaction of a borrowing base test as more fully described in the Revolving Loan Facility.

The Term Loan matures on August 8, 2020. Payments under the Term Loan are interest-only for the first twelve months at a per annum rate of 12.5%, followed by principal and interest payments amortized over the remaining term of the Term Loan. If the Company elects to prepay the Term Loan before its maturity, all accrued and unpaid interest outstanding at the prepayment date will be due and payable, together with all the scheduled interest that would have accrued and been payable through the stated maturity of the Term Loan, provided that at any time after the Company has made at least twelve scheduled amortization payments of principal and interest on the Term Loan the Company shall only be required to pay 80% of the scheduled interest that would have accrued and been payable through the stated maturity of the Term Loan,

The Company is obligated to pay customary fees and expenses, including customary facility fees for credit facilities of this size and type, in the aggregate amount of approximately $120,000, in connection with the closing of the two facilities. An additional facility fee of $40,000 will be payable in connection with the Revolving Loan Facility on the February 8, 2018.

Each of the Revolving Loan Facility and the Term Loan contain customary representations and warranties and customary affirmative and negative covenants, including, limits or restrictions on the Company's ability to incur liens, incur indebtedness, make certain restricted payments, merge or consolidate and dispose of assets. The Revolving Loan Facility also contains various financial covenants as set forth in the Revolving Loan Facility, including but not limited to a liquidity covenant requiring the Company to maintain at least $4.0 million of cash. In addition, each of the Revolving Loan Facility and the Term Loan contains customary events of default that entitle the EWB or VLL7 and VLL8, as appropriate, to cause any or all of the Company's indebtedness under the Revolving Loan Facility or the Term Loan, respectively, to become immediately due and payable. The events of default (some of which are subject to applicable grace or cure periods), include, among other things, non-payment defaults, covenant defaults, cross-defaults to other material indebtedness, bankruptcy and insolvency defaults and material judgment defaults. Upon the occurrence and during the continuance of an event of default, EWB and VLL7 and VLL8 may terminate their lending commitments and/or declare all or any part of the unpaid principal of all loans, all interest accrued and unpaid thereon and all other amounts payable under the Loan and Security Agreements to be immediately due and payable.

The proceeds of the Term Loan and the initial draw under Revolving Loan Facility and after payment of fees and expenses, were used to repay all outstanding amounts under the Credit Agreement with Opus. In connection with the repayment, warrants to purchase an aggregate of 400,000 shares of common stock issued to Opus were cancelled. The proceeds of any additional draws under the Revolving Loan Facility will be used for working capital and other general corporate purposes.

In connection with the Company's entry into the Revolving Loan Facility and Term Loan, the Company issued to EWB a warrant (the "EWB Warrant") to purchase up to 40,000 shares of the Company's common stock at a per share exercise price of $3.64, and issued to each of VLL7 and VLL8 a warrant to purchase 290,000 shares of the Company's common stock at a per share exercise price of $2.00 (the “VLL7 Warrant” and the “VLL8 Warrant,” respectively). Each of the EWB Warrant, the VLL7 Warrant and the VLL8 Warrant is immediately exercisable for cash or by net exercise and will expire five years after its issuance, or on February 8, 2022. The Company has granted registration rights on substantially similar terms given to the Prior Lender to the holders of each of the warrants.