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Insulin Pump Insulin Pump [Member] Insulin pump. United States UNITED STATES Common stock, par value (usd per share) Common Stock, Par or Stated Value Per Share Current assets: Assets, Current [Abstract] Common stock reserved for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Leases [Abstract] Leases [Abstract] Entity Central Index Key Entity Central Index Key Security Exchange Name Security Exchange Name Intangible Assets Subject to Amortization Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Interest expense Interest Expense, Other Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Weighted average shares used to compute diluted net income (loss) per share (in shares) Weighted average shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Common stock warrants Warrants and Rights Outstanding Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Income Taxes Income Tax Disclosure [Text Block] Long-term Debt, Type Long-term Debt, Type [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Write-offs and adjustments, net of recoveries Accounts Receivable, Allowance for Credit Loss, Writeoff Equity component of convertible senior notes issuance, net of issuance costs Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt Schedule of Anti-Dilutive Securities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Number of legal proceedings, regulatory matters, or other, disputes or claims Number Of Legal Proceedings Regulatory Matters Or Other Disputes Or Claims Number of legal proceedings, regulatory matters, or other, disputes or claims. 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