Equity Components [Axis]
Common Stock
Additional Paid-In Capital
Treasury Stock
Retained Earnings / Accumulated Deficit
Property, Plant and Equipment, Type [Axis]
Buildings [Member]
Range [Axis]
Minimum [Member]
Maximum [Member]
Facility Improvements [Member]
Machinery and Equipment [Member]
Furniture and Fixtures [Member]
Change In Accounting Policies [Axis]
Before Adoption [Member]
Topic 606 [Member]
After Adoption [Member]
No Adoption [Member]
Effective Change [Member]
Dividend 2 [Member]
Dividend 1 [Member]
Document And Entity Information
Entity Registrant Name
Entity Central Index Key
Document Type
Document Period End Date
Amendment Flag
Amendment Description
Current Fiscal Year End Date
Is Entity a Well-known Seasoned Issuer?
Is Entity a Voluntary Filer?
Is Entity's Reporting Status Current?
Is Entity Emerging Growth Company?
Elected Not To Use the Extended Transition Period
Entity Filer Category
Entity Small Business
Entity Public Float
Entity Common Stock, Shares Outstanding
Document Fiscal Period Focus
Document Fiscal Year Focus
Statement of Financial Position [Abstract]
CURRENT ASSETS
Cash and cash equivalents
Short-term investments
Receivables, net of allowance for doubtful accounts of $0 at August 24, 2019 and November 30, 2018
Contract Assets
Inventories:
Raw materials and supplies
Work-in process
Total inventories
Prepaid income tax
Prepaid expenses and other assets
Total current assets
PROPERTY, PLANT AND EQUIPMENT, at cost:
Land
Buildings
Facility improvements
Furniture and fixtures
Construction in process equipment
Machinery and equipment
Total property, plant, and equipment
Less accumulated depreciation
Net property, plant, and equipment
Deferred income taxes, net
Total assets
LIABILITIES AND SHAREHOLDERS’ EQUITY
CURRENT LIABILITIES:
Accounts payable
Accrued compensation
Deferred revenue
Property taxes
Other accrued liabilities
Total current liabilities
Commitments
SHAREHOLDERS’ EQUITY
Common stock, $.10 par value, authorized 10,000,000 shares, 3,078,315 issued and 2,578,315 outstanding at August 24, 2019 and November 30, 2018
Additional paid-in capital
Treasury stock, 500,000 shares, at cost
Retained earnings
Total shareholders’ equity
Total liabilities and shareholders’ equity
Allowance for doubtful accounts
Common Stock, par value
Common Stock, shares authorized
Common Stock, shares issued
Common Stock, shares outstanding
Treasury stock, shares
Income Statement [Abstract]
NET SALES
COST AND EXPENSES:
Cost of goods sold
Research and development
Selling, general & administrative expenses
Total cost and expenses
OPERATING INCOME
Other income
Interest income, net
INCOME BEFORE TAXES
Provision (benefit) for taxes
NET INCOME
NET INCOME PER SHARE, BASIC AND DILUTED
DIVIDENDS PER SHARE
WEIGHTED AVERAGE OF SHARES, basic and diluted
Statement of Cash Flows [Abstract]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation
Deferred tax
Changes in certain current assets and liabilities
Accounts receivable
Inventories
Contract asset
Prepaid expense and other current assets
Prepaid income taxes
Deferred revenue
Accounts payable
Accrued compensation
Other accrued liabilities
Net cash provided by operating activities
CASH FLOWS FROM INVESTING ACTIVITIES:
Sale of short term investments
Purchase of short term investments
Additions to property, plant and equipment
Net cash used in investing activities
CASH FLOWS FROM FINANCING ACTIVITIES
Cash dividend
Net cash used in financing activities
Net change in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Supplemental Cash Flow Disclosure:
Cash paid for income taxes
Statement [Table]
Statement [Line Items]
Beginning Balance
Impact of Change in Accounting Policy
Dividend
Net Income
Ending Balance
Accounting Policies [Abstract]
BASIS OF PRESENTATION
SIGNIFICANT ACCOUNTING POLICIES
Organization, Consolidation and Presentation of Financial Statements [Abstract]
NEW ACCOUNTING PRONOUNCEMENTS
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENT
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS
Earnings Per Share [Abstract]
EARNINGS PER COMMON SHARE
Dividends, Common Stock [Abstract]
SHAREHOLDERS' EQUITY
Revenue Recognition
Short-Term Investments
Inventories
Income Taxes
Property, Plant, and Equipment
Research and Development Costs
Adjustment to retained earnings
Effects of new standard on Condensed Statement of Operations - 3 months
Effects of new standard on Condensed Statement of Operations - 6 months
Disaggregation of Revenue
Property and equipment schedule of useful lives
ChangeinAccountingPoliciesAxis [Axis]
Assets
Contract assets
Work in process
Deferred income tax net
Shareholder equity
Retained Earnings
Net Sales
Costs of goods sold
Income before taxes
Income tax
New income
Estimated useful lives
Microcircuits
Optoeletronics
Sensors and Displays
Total Sales
Timing of revenue recognition
Recognized at a point in time
Recognized over time
Total Revenue
Short term investments maturity date more than 90 days
Increase in retained earnings due to New Accounting Policies
Revalued deferred tax assets and liabilities
Credit line maximum
Minimum working capital of not less than
Balance sheet cash on hand to the extent in excess
Maximum EBITDA
Minimum EBITDA
Maximum free cash flow to debt service
Minimum free cash flow to debt service
Antidilutive shares excluded from EPS calculation
Date of declaration
Dividend per share
Record date
Dividend paid date
Property and equipment schedule of useful lives [Table Text Block]
Inventory, Net
Assets, Current
Property, Plant and Equipment, Gross
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property, Plant and Equipment, Net
Assets [Default Label]
Liabilities, Current
Treasury Stock, Value
Stockholders' Equity Attributable to Parent
Liabilities and Equity
Cost of Goods and Services Sold
Research and Development Expense
Selling, General and Administrative Expense
Costs and Expenses
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Income Tax Expense (Benefit)
Increase (Decrease) in Deferred Income Taxes
Increase (Decrease) in Accounts Receivable
Increase (Decrease) in Inventories
Increase (Decrease) in Prepaid Expenses, Other
Increase (Decrease) in Prepaid Taxes
Increase (Decrease) in Deferred Revenue
Increase (Decrease) in Accounts Payable
Increase (Decrease) in Accrued Liabilities
Increase (Decrease) in Other Accrued Liabilities
Net Cash Provided by (Used in) Operating Activities
Payments to Acquire Investments
Payments to Acquire Property, Plant, and Equipment
Net Cash Provided by (Used in) Investing Activities
Payments of Dividends
Net Cash Provided by (Used in) Financing Activities
Cash and Cash Equivalents, Period Increase (Decrease)
Dividends
TotalSales
Revenue