Income Statement Location [Axis]
Cost Of Goods Sold
Research and Development
Selling, general and administrative
Document And Entity Information
Entity Registrant Name
Entity Central Index Key
Document Type
Document Period End Date
Amendment Flag
Current Fiscal Year End Date
Is Entity a Well-known Seasoned Issuer?
Is Entity a Voluntary Filer?
Is Entity's Reporting Status Current?
Entity Filer Category
Entity Common Stock, Shares Outstanding
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 for doubtful accounts of $100 and $73, respectively
Inventories
Other current assets
TOTAL CURRENT ASSETS
Property, plant and equipment - net
Income tax receivable
Other assets
TOTAL ASSETS
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
Accounts payable
Accrued compensation
Deferred revenue
Other accrued liabilities
Income taxes payable
TOTAL CURRENT LIABILITIES
Long-term other payables
COMMITMENTS
STOCKHOLDERS' EQUITY
Preferred stock - Authorized, 5,000,000 shares, including 200,000 shares of Series A Junior Participating Issued and outstanding, none
Common stock, at stated value - Authorized, 30,000,000 shares Issued and outstanding, 8,427,884 shares as of June 30, 2018 and 8,276,813 shares as of December 31, 2017
Accumulated earnings (deficit)
Accumulated other comprehensive income
TOTAL STOCKHOLDERS' EQUITY
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY
Trade accounts receivable, net of allowance
Preferred stock, authorized shares (including Series A)
Preferred stock, issued shares
Preferred stock, outstanding shares
Common stock, authorized shares
Common stock, issued shares
Common stock, outstanding shares
Income Statement [Abstract]
Net Sales
Cost of goods sold
Gross margin
Operating expenses:
Research and development
Selling, general and administrative
Total operating expenses
Operating income
Non-operating income (expense):
Interest income
Gain on sale of assets
Foreign currency transaction gain (loss)
Total non-operating income
Income before income taxes
Income tax (expense)
Net income
Basic earnings per share
Diluted earnings per share
Weighted-average basic shares
Weighted-average diluted shares
Consolidated Statements Of Comprehensive Income Loss In Thousands
Net income
Other comprehensive income:
Foreign currency translation gain (loss)
Comprehensive income (loss)
Statement of Cash Flows [Abstract]
CASH FLOWS FROM OPERATING ACTIVITIES:
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization
Gain on sale of assets
Equipment transferred to cost of goods sold
Share-based compensation
Net change in:
Trade accounts receivable
Inventories
Other current assets
Accounts payable and accrued liabilities
Deferred revenue
Other long-term liabilities
Deposits and other long-term assets
Net cash provided by (used in) operating activities
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment
Net proceeds from sale of assets
Cash provided by (used in) investing activities
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax
Cash provided by (used in) financing activities
Increase (decrease) in cash and cash equivalents
Effects of exchange rate changes on cash
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Supplemental disclosure of cash flow information:
Cash paid during the period for: Income Taxes
Organization, Consolidation and Presentation of Financial Statements [Abstract]
NOTE 1 - FINANCIAL STATEMENT PREPARATION
Inventory Disclosure [Abstract]
NOTE 2 - INVENTORIES
Property, Plant and Equipment [Abstract]
NOTE 3 - PROPERTY, PLANT AND EQUIPMENT, NET
Note 4 - Other Accrued Liabilities
NOTE 4 - OTHER ACCRUED LIABILITIES
Notes to Financial Statements
NOTE 5 - OPERATING LEASE COMMITMENTS
Commitments and Contingencies Disclosure [Abstract]
NOTE 6 - OTHER COMMITMENTS
NOTE 7 - CONTINGENCIES
Earnings Per Share [Abstract]
NOTE 8 - EARNINGS PER SHARE
Share-based Compensation [Abstract]
NOTE 9 - SHARE-BASED COMPENSATION
Note 1 - Financial Statement Preparation
Revenue Recognition
Stock-Based Compensation Expense
Income Tax
Recent Accounting Pronouncements
Note 2 - Inventories
INVENTORIES
Note 3 - Property Plant And Equipment Net
PROPERTY, PLANT AND EQUIPMENT, NET
Note 4 - Other Accrued Liabilities
Other accrued liabilities
Product warranty liability
Note 5 - Operating Lease Commitments
OPERATING LEASE COMMITMENTS
Note 8 - Earnings Per Share
EARNINGS PER SHARE
Note 9 - Share-based Compensation
Impact on operations of recording share-based compensation
Equity award activity
Future equity compensation expense
Unrecognized tax benefits
Raw material
Work-in-process
Finished goods
Inventories
Leasehold improvements
Equipment
Sale demonstration equipment
Property and equipment gross
Less accumulated depreciation
Property and equipment, net
Payables and Accruals [Abstract]
Product warranty
Sales return reserve
Other taxes
Other
Other accrued liabilities
Liability, beginning balance
Net expenses
Warranty claims
Accrual revisions
Liability, ending balance
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018 (remaining)
2019
2020
2021
2022
Thereafter
Total
Purchase and other obligations
After 2018
Numerator for basic and diluted earnings per share: Net income (loss)
Denominator for basic earnings per share: weighted average shares
Employee stock options and awards
Denominator for diluted earnings per share: adjusted weighted-average shares and assumed conversions of stock options
Total basic earnings (loss) per share
Total diluted earnings (loss) per share
Anti dilutive options to purchase shares
Statement [Table]
Statement [Line Items]
Total share-based compensation
Impact on net earnings (loss) per share : Basic and diluted
Note 9 - Share-based Compensation
Restricted stock granted
Stock options granted
Note 9 - Share-based Compensation
Unamortized future equity compensation expense
Remaining weighted average amortization period
Custom Element.
Custom Element.
Equipment Transferred To Cost Of Goods Sold.
Custom Element.
Custom Element.
Custom Element.
Custom Element.
Custom Element.
Assets, Current
Assets
Liabilities, Current
Stockholders' Equity Attributable to Parent
Liabilities and Equity
Gross Profit
Selling, General and Administrative Expense
Operating Expenses
Operating Income (Loss)
Nonoperating Income (Expense)
Income Tax Expense (Benefit)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Increase (Decrease) in Accounts Receivable
Increase (Decrease) in Inventories
Increase (Decrease) in Other Current Assets
Increase (Decrease) in Deferred Revenue
Increase (Decrease) in Deposit Assets
Net Cash Provided by (Used in) Operating Activities
Payments to Acquire Property, Plant, and Equipment
Net Cash Provided by (Used in) Investing Activities
Net Cash Provided by (Used in) Financing Activities
Cash and Cash Equivalents, Period Increase (Decrease)
Schedule of Accrued Liabilities [Table Text Block]
Property, Plant and Equipment, Gross
Accrued Liabilities