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Warrant expiration period.

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Face (par) amount of debt instrument at time of issuance.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Amount of the fee that accompanies borrowing money under the debt instrument.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Amount of each individual error being corrected in the correcting adjustment.

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Notes Payable - Additional Information (Detail) - USD ($)					9 Months Ended	12 Months Ended
	Sep. 18, 2015	Aug. 14, 2015	Sep. 26, 2014	Jan. 17, 2012	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Debt discount liability, facility fee			$ 75,000
Warrants expiration period			7 years
Approximated Amount of debt discount			$ 129,000
Fair value of warrants on the issue date			54,000
Debt discount liability, legal fees			30,000
Other Current Assets [Member]
Debt Instrument [Line Items]
Decrease in retrospectively revision from prior periods						$ 49,000
Other Long Term Assets [Member]
Debt Instrument [Line Items]
Decrease in retrospectively revision from prior periods						51,000
Notes Payable Less Current Portion, Net of Debt Discount [Member]
Debt Instrument [Line Items]
Decrease in retrospectively revision from prior periods						$ 100,000
First Amended and Restated Loan Agreement [Member]
Debt Instrument [Line Items]
Interest only payment percentage		7.50%
Maturity date of the term loans		Oct. 01, 2018
Debt discount liability, facility fee					$ 90,000
Issue of warrants to purchase shares of company's common stock					112,903
First Amended and Restated Loan Agreement [Member] \| SurgiBot [Member]
Debt Instrument [Line Items]
Trailing six-month revenues recognition		$ 10,000,000
First Amended and Restated Loan Agreement [Member] \| First Tranche [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Amount of borrowing under agreement		10,000,000
First Amended and Restated Loan Agreement [Member] \| First Tranche [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Amount of borrowing under agreement		20,000,000
First Amended and Restated Loan Agreement [Member] \| Second Tranche [Member]
Debt Instrument [Line Items]
Amount of borrowing under agreement		$ 10,000,000
Second Amended and Restated Loan Agreement [Member]
Debt Instrument [Line Items]
Interest only payment percentage	7.50%
Amount of equity securities offering					$ 40,000,000
Second Amended and Restated Loan Agreement [Member] \| Without Interest- Only Extension [Member]
Debt Instrument [Line Items]
Maturity date of the term loans	Jul. 01, 2018
Debt instrument, redemption price percentage					6.50%
Second Amended and Restated Loan Agreement [Member] \| First Interest- Only Extension [Member]
Debt Instrument [Line Items]
Maturity date of the term loans	Dec. 01, 2018
Second Amended and Restated Loan Agreement [Member] \| With Interest-Only Extension [Member]
Debt Instrument [Line Items]
Maturity date of the term loans	Jun. 01, 2019
Debt instrument, redemption price percentage					8.00%
Amended and Restated Loan Agreement [Member]
Debt Instrument [Line Items]
Term loan aggregate principal amount			$ 25,000,000
Interest only payment percentage			7.50%
Maturity date of the term loans			Apr. 01, 2018
Debt instrument, redemption price percentage					5.45%
Debt Instrument, redemption price amount					$ 165,920
Debt discount liability, facility fee					$ 90,000
Issue of warrants to purchase shares of company's common stock					38,324
Warrants expiration period					7 years
Percentage of common stock pledged					100.00%
Amended and Restated Loan Agreement [Member] \| First Tranche [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Amount of borrowing under agreement			$ 5,604,000
Amended and Restated Loan Agreement [Member] \| First Tranche [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Amount of borrowing under agreement			10,000,000
Notes Payable [Member]
Debt Instrument [Line Items]
Debt discount liability, facility fee					$ 90,000
Debt discount liability, legal fees					23,000
Debt discount liability, discount					210,000
Debt discount liability, fair value of warrant					$ 97,000
Loan and Security Agreement [Member]
Debt Instrument [Line Items]
Note issuance date				Jan. 17, 2012
Issuance of promissory note as part of merger transaction				$ 10,000,000
Maturity date				Jan. 01, 2016
Term loan fixed interest rate				8.75%
Outstanding principal amount of the original loan agreement			$ 5,604,000
Debt instrument, redemption price percentage			3.33%
Debt Instrument, redemption price amount			$ 333,000
Debt discount liability, facility fee			$ 75,000
Issue of warrants to purchase shares of company's common stock				279,588
Loan and Security Agreement [Member] \| Term A Loan [Member]
Debt Instrument [Line Items]
Issuance of promissory note as part of merger transaction				$ 4,000,000
Loan and Security Agreement [Member] \| Term B Loan [Member]
Debt Instrument [Line Items]
Issuance of promissory note as part of merger transaction				$ 6,000,000