Finite Lived Intangible Assets By Major Class [Axis]
Customer Relationships [Member]
Developed Technology [Member]
Other Patents And Patent Applications [Member]
Indefinite Lived Intangible Assets By Major Class [Axis]
Trademarks [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Inputs, Level 1 [Member]
Measurement Frequency [Axis]
Fair Value, Measurements, Recurring [Member]
Equity Components [Axis]
Common Stock Warrants [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 3 [Member]
Debt Instrument [Axis]
Hercules Term Loan [Member]
Type of Arrangement and Non-arrangement Transactions [Axis]
Hercules and Riverside Debt Assignment [Member]
Riverside Merchant Partners, LLC [Member]
Liability Class [Axis]
Measurement Basis [Axis]
Black-Scholes-Merton Valuation Model [Member]
Sale of Stock [Axis]
Secondary Offering [Member]
Warrants [Member]
Related Party [Axis]
Common Stock [Member]
North Stadium Investments, LLC [Member]
Hercules Technology Capital, Inc. [Member]
Agreement [Axis]
Loan and Security Agreement [Member]
Monte Carlo Simulation Valuation Model [Member]
Class of Stock [Axis]
Class A Units [Member]
Underwriter [Member]
Class B Units [Member]
Preferred Stock [Member]
Award Date [Axis]
May 14, 2018 [Member]
Convertible Notes [Member]
L2 Capital Debt [Member]
Long-term Debt, Type [Axis]
Senior Secured Convertible Promissory Notes One [Member]
Senior Secured Convertible Promissory Notes Two [Member]
Exchange Notes [Member]
Closing Date [Member]
North Stadium [Member]
MEF I, LP [Member]
Anson Investments [Member]
L2 Capital [Member]
Investors [Member]
Amendment Agreement [Member]
New Warrants [Member]
Convertible Preferred Stock [Member]
Income Statement Location [Axis]
Cost of Revenue [Member]
Research and Development [Member]
General and Administrative [Member]
Selling and Marketing [Member]
Capitalized into Inventory [Member]
Award Type [Axis]
Employee Stock Option [Member]
Subsequent Event Type [Axis]
Subsequent Event [Member]
Warrant Reprice March 2018 [Member]
May 2018 [Member]
Convertible Preferred Stock and Warrants [Member]
Public Offering [Member]
Series B Convertible Preferred Stock [Member]
Document And Entity Information
Entity Registrant Name
Entity Central Index Key
Document Type
Document Period End Date
Amendment Flag
Current Fiscal Year End Date
Entity Filer Category
Entity Common Stock, Shares Outstanding
Trading Symbol
Document Fiscal Period Focus
Document Fiscal Year Focus
Statement of Financial Position [Abstract]
Assets
Current assets:
Cash and cash equivalents
Trade accounts receivable, net of allowance of $37 and $22, respectively
Prepaid expenses and other current assets
Inventories, net
Total current assets
Inventories, net
Property and equipment, net
Intangible assets, net
Goodwill
Other long-term assets
Total assets
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable
Accrued liabilities
Debt – related party
Debt
Derivative liabilities, current portion
Total current liabilities
Deferred rent
Other long-term liabilities
Derivative liabilities, net of current portion
Total liabilities
Commitments and contingencies
Stockholders’ equity:
Convertible preferred stock, $0.01 par value, 130,000,000 shares authorized; no shares issued and outstanding.
Common stock, $0.01 par value, 250,000,000 shares authorized, 4,276,844 and 3,028,065 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively.
Additional paid-in capital
Accumulated deficit
Total stockholders’ equity
Total liabilities and stockholders’ equity
Allowance of trade accounts receivable
Convertible preferred stock, par value
Convertible preferred stock, shares authorized
Convertible preferred stock, shares issued
Convertible preferred stock, shares outstanding
Common stock, par value
Common stock, shares authorized
Common stock, shares issued
Common stock, shares outstanding
Income Statement [Abstract]
Product revenue
Costs of revenue
Gross profit
Operating expenses:
Research and development
General and administrative
Sales and marketing
Total operating expenses
Loss from operations
Other income (expenses):
Interest expense
Loss on extinguishment of debt
Change in fair value of derivative liabilities
Loss on extinguishment of derivative liabilities
Offering costs
Other income, net
Total other income (expense), net
Net loss before income taxes
Provision for income taxes
Net loss
Deemed dividend related to adjustment of the exercise price of warrants issued with debt
Net loss attributable to common stockholders
Net loss per share
Basic and diluted
Weighted average common shares outstanding:
Basic and diluted
Statement of Cash Flows [Abstract]
Cash flow from operating activities
Net loss
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense
Amortization of intangible assets
Amortization of lease incentive for tenant improvements
Non-cash interest expense
Loss on extinguishment of debt
Stock based compensation
Change in fair value of derivative liabilities
Gain on disposal of equipment
Loss on extinguishment of derivative liabilities
Provision for inventory reserve
Offering costs
Changes in operating assets and liabilities:
Trade accounts receivable
Prepaid expenses and other current assets
Inventories
Accounts payable and accrued liabilities
Net cash used in operating activities
Cash flows from investing activities
Purchase of property and equipment
Purchase of intangible asset
Proceeds from sale of property and equipment
Net cash used in investing activities
Cash flows from financing activities
Proceeds from issuance of stock in connection with exercise of warrants, net of issuance costs
Proceeds from issuance of debt
Payments on debt
Proceeds from issuance of common stock, net of issuance costs
Proceeds from issuance of warrant derivative liability
Net cash provided by financing activities
Net increase (decrease) in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Noncash investing and financing activities
Debt exchange
Payment of debt with common stock
Warrants issued in association with debt
Supplemental cash flow information
Cash paid for interest
Accounting Policies [Abstract]
Organization and Summary of Significant Accounting Policies
Earnings Per Share [Abstract]
Basic and Diluted Net Loss Per Common Share
Inventory Disclosure [Abstract]
Inventories, Net
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets
Fair Value Disclosures [Abstract]
Fair Value Measurements
Payables and Accruals [Abstract]
Accrued Liabilities
Debt Disclosure [Abstract]
Debt
Equity [Abstract]
Equity
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies
Subsequent Events [Abstract]
Subsequent Events
Organization
Basis of Presentation
Use of Estimates
Liquidity and Capital Resources
Reverse Stock Split
Significant Accounting Policies
New Accounting Pronouncements Not Yet Adopted
New Accounting Pronouncements Adopted During the Quarter Ended March 31, 2018
Schedule of Components of Inventory
Schedule of Intangible Assets
Fair Value Inputs, Liabilities, Quantitative Information [Table]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Range [Axis]
Schedule of Financial Liabilities Measured at Fair Value on Recurring Basis by Level within Fair Value Hierarchy
Schedule of Reconciliation of Derivative Liability
Schedule of Assumptions used in Estimating Fair Value
Schedule of Accrued Liabilities
Schedule of Outstanding Long-Term Debt
Summary of Stock Option Activity
Summary of Stock-Based Compensation Expense
Schedule of Unrecognized Stock-Based Compensation
Statement [Table]
Statement [Line Items]
Net loss
Net cash used in operating activities
Accumulated deficit
Proceeds from issuance of private placement
Proceeds from issuance of public offering
Reverse stock split
Dilutive securities
Finished goods include consigned inventory
Inventories, current
Inventories, non - current
Raw materials
WIP
Finished Goods
Total inventory
Estimated amortization expense for the remainder of 2018
Estimated amortization expense, through 2021
Estimated amortization expense, 2022
Thereafter
Schedule of Finite-Lived Intangible Assets [Table]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets by Major Class [Axis]
Indefinite-lived Intangible Assets [Axis]
Total intangibles
Less accumulated amortization
Total intangibles net of amortization
Financial assets measured on recurring basis
Derivative liability
Weighted average price stock exceeds
Average daily trading value
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability
Beginning balance
Issuances of derivatives
Decrease in liability due to warrants being exercised
Change in fair value
Other, net
Ending balance
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Weighted-average risk-free interest rate
Weighted-average expected life (in years)
Expected dividend yield
Weighted average expected volatility
Payroll and related expense
Other
Commissions
Royalties
Interest payable
Final loan payment fees
Total accrued liabilities
Capitalized Into Inventory [Member]
Debt principal amount
Debt purchase price
Warrant to purchase shares of common stock
Warrant exercise price per share
Percentage of loan bear interest rate
Percentage of default interest rate
Debt trading per share
Debt instrument trading days
Debt instrument, description
Debt maturity date
Debt instrument conversion price
Debt instrument trading percentage
Warrant term
Fair value of warrants
Term loan fee amount
Final payment fee for debt
Subordinated convertible promissory notes
Debt additional principal
Schedule of Long-term Debt Instruments [Table]
Debt Instrument [Line Items]
Total debt, Outstanding Principle
Total debt, Unamortized Discount and Debt Issuance Costs
Total debt, Net Carrying Amount
Current portion, Outstanding Principle
Current portion, Unamortized Discount and Debt Issuance Costs
Current portion, Net Carrying Amount
Long-term debt, Outstanding Principle
Long-term debt, Unamortized Discount and Debt Issuance Costs
Long-term debt, Net Carrying Amount
Related Party Transaction [Axis]
Legal Entity [Axis]
Warrants to purchase of common stock shares
Warrants exercise price
Proceeds from warrant exercised
Ownership percentage
Number of shares of common stock sold
Proceeds from issuance of common stock gross
Proceeds from issuance of common stock net
Stock issuance cost
Allocated to warrants
Warrants issuance cost
Warrants expire term
Units price per unit
Class of unit description
Convertible preferred stock shares conversion
Common stock, issued
Preferred stock, issued
Proceeds from issuance of warrants
Warrants for derivative liability
Number of common stock received
Number of common stock exercise, shares
Options, Outstanding at beginning of period
Options, Granted
Options, Exercised
Options, Forfeited
Options, Expired
Options, Outstanding at end of period
Options, Exercisable at end of period
Options, Vested and expected to vest at end of period
Weighted Average Exercise Price, Outstanding at beginning of period
Weighted Average Exercise Price, Granted
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Forfeited
Weighted Average Exercise Price, Expired
Weighted Average Exercise Price, Outstanding at end of period
Weighted Average Exercise Price, Exercisable at end of period
Weighted Average Exercise Price, Vested and expected to vest at end of period
Weighted Average Remaining Contractual Terms (Years), Outstanding
Weighted Average Remaining Contractual Terms (Years), Outstanding
Weighted Average Remaining Contractual Terms (Years), Exercisable
Weighted Average Remaining Contractual Terms (years), Vested and expected to vest
Intrinsic Value, Outstanding at beginning of period
Intrinsic Value, Outstanding at end of period
Intrinsic Value, Exercisable at end of period
Intrinsic Value, Vested and expected to vest at end of period
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation
Weighted average remaining period of recognition (in years)
Proceeds from public offering
Stock issued price per shares
Preferred stock stated value
Common stock state value
Conversion price per share
Share price
Debt conversion, description
Accrued final loan payment fees current.
Agreement [Axis]
Amendment and Exchange Agreement [Member]
Capitalized into inventory.
Closing Date [Member]
Common stock [Member]
Common stock warrants.
Convertible Note [Member]
Cost of revenue.
Exchange Agreement [Member]
First Amendment to Loan and Security Agreement [Member]
First, Second and Third Exchange Note [Member]
Hercules and Riverside Debt Assignment [Member]
Hercules Technology Capital, Inc. [Member]
Hercules Term Loan [Member]
Initial Convertible Note [Member]
July 28, 2017 [Member]
Liquidity and capital resources [Policy Text Block]
Loan and Security Agreement [Member]
Magna August Note [Member]
Magna Note [Member]
North Stadium Investments LLC [Member]
Other Patents And Patent Applications [Member]
Provision for inventory reserve.
Riverside Debt [Member]
Riverside Merchant Partners, LLC [Member]
Secondary Offering [Member]
Securities Purchase Agreement [Member]
Senior Convertible Debt One [Member]
Senior Convertible Debt Two [Member]
September 2015 Offering [Member]
Series B Warrants [Member]
Series C Warrants [Member]
Settlement Agreement [Member]
Settlement and Waiver Agreement [Member]
Underwriter [Member]
Warrants [Member]
Debt discount from warrants issued with debt.
Reverse Stock Split [Policy Text Block]
North Stadium Term Loan [Member]
November 10, 2017 [Member]
Monte Carlo Simulation Valuation Model [Member]
Average daily trading value.
Convertible Notes [Member]
Gains (Losses) on Extinguishment of Derivative Instruments.
Debt exchange - Riverside.
New accounting pronouncement, not yet adopted [Policy Text Block]
Common stock options.
Ceramics Equipment [Member]
Ceramics Surgical Instrument [Member]
Surgical instruments.
Furniture And Equipment [Member]
Preferred Stock Warrants [Member]
Class A Units [Member]
Class B Units [Member]
Investors [Member]
Series A Warrants [Member]
Placement Agent [Member ]
Other Issuances [Member]
Settlement Agreement and Release [Member]
Riverside [Member]
Joint Agreement [Member]
Operating Leases [Member]
Sublease Income [Member]
One Customer [Member]
Tax Cuts and Jobs Act [Member]
Senior Secured Convertible Promissory Notes One [Member]
Senior Secured Convertible Promissory Notes Two [Member]
Warrant Derivative Liability [Member]
Black-Scholes-Merton Valuation Model [Member]
Hampshire MedTech Partners II, GP [Member]
Restatement - Warrant Liability [Member]
As Restated After Restatement [Member]
2018 [Member]
Significant Accounting Policies [Policy Text Block]
Organization [Policy Text Block]
May 14, 2018 [Member]
L2 Capital Debt [Member]
Exchange Notes [Member]
Debt purchase price.
Warrant term.
North Stadium [Member]
MEF I, LP [Member]
Anson Investments [Member]
L2 Capital [Member]
Current face (par) amount of debt instrument at balance sheet date.
Noncurrent face (par) amount of debt instrument at balance sheet date.
Amendment Agreement [Member]
New Warrants [Member]
Proceeds from issuance of common stock gross.
Allocated to warrants.
Warrants issuance cost.
Warrants expire term.
Warrants for derivative liability.
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
Warrant Reprice March 2018 [Member]
May 2018 [Member]
Convertible Preferred Stock and Warrants [Member]
Series B Convertible Preferred Stock [Member]
Assets, Current
Assets [Default Label]
Liabilities, Current
Liabilities
Stockholders' Equity Attributable to Parent
Liabilities and Equity
Gross Profit
Operating Expenses
Operating Income (Loss)
Interest Expense, Other
Nonoperating Income (Expense)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Net Income (Loss) Available to Common Stockholders, Basic
Weighted Average Number of Shares Outstanding, Basic and Diluted
Gain (Loss) on Disposition of Property Plant Equipment
Gains (Losses) on Extinguishment of Derivative Instruments
Increase (Decrease) in Accounts Receivable
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (Decrease) in Inventories
Net Cash Provided by (Used in) Operating Activities
Payments to Acquire Property, Plant, and Equipment
Net Cash Provided by (Used in) Investing Activities
Repayments of Debt
Net Cash Provided by (Used in) Financing Activities
Cash and Cash Equivalents, Period Increase (Decrease)
Debt Disclosure [Text Block]
Inventory, Net
Finite-Lived Intangible Assets, Accumulated Amortization
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value
Debt Instrument, Unamortized Discount
Debt Instrument, Unamortized Discount, Current
Debt Instrument, Unamortized Discount, Noncurrent
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value