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v3.22.2.2

Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Sep. 30, 2022 | Sep. 30, 2021
Restricted Cash and Cash Equivalents, Total |  | $ 2,045,000 | $ 2,043,000
Net Income (Loss) Attributable to Parent, Total |  | (75,624,000) | 112,900,000
Unrealized Gain (Loss) on Investments |  | (123,401,000) | 106,499,000
Equity Securities, FV-NI, Current |  | 275,529,000 | 347,573,000
Equity Securities, FV-NI, Unrealized Gain (Loss), Total |  | 120,692,000 | 244,093,000
Equity Securities, FV-NI, Unrealized Gain (Loss), Tax |  | 32,120,000 | 64,115,000
Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale, Total |  | 80,570,000 | 45,033,000
Debt Securities, Available-for-Sale, Realized Gain (Loss), Total |  | 14,249,000 | 41,749,000
Payments to Acquire Marketable Securities |  | 117,678,000 | 64,990,000
Proceeds from Issuance of Debt |  | 43,014,000 | 17,000,000
Depreciation, Total |  | 379,000 | $ 480,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) |  |  | 10 years
Increase (Decrease) in Other Accrued Liabilities |  | $ 1,245,000 |
Other Accrued Liabilities Impact on Earnings Per Share (in dollars per share) |  | $ 90 |
Common Stock, Shares, Outstanding, Ending Balance (in shares) |  | 1,377,026 |
Weighted Average Number of Shares Outstanding, Basic, Total (in shares) |  | 1,379,655 | 1,380,746
Operating Lease, Right-of-Use Asset |  | $ 104,000 | $ 215,000
Accrued Liabilities, Current and Noncurrent [Member] |  |  |
Operating Lease, Liability, Total |  | 104,000 |
Operating Lease, Liability, Noncurrent |  | $ 22,000 | $ 103,000
Director [Member] |  |  |
Receipt of Donated Treasury Stock, Shares (in shares) | 3,720 |  |
Receipt of Donated Treasury Stock, Value | $ 1,000,000 |  |
Measurement Input, Discount Rate [Member] |  |  |
Incentive Plan Future Commitment, Measurement Input |  | 6.00% | 6.00%
Management Incentive Plan, Future Commitment [Member] |  |  |
Other Accrued Liabilities |  | $ 4,525,000 | $ 3,280,000
Increase (Decrease) in Other Accrued Liabilities |  |  | $ 1,835,000
Other Accrued Liabilities Impact on Earnings Per Share (in dollars per share) |  |  | $ 1.33
Daily Journal Non-Consolidated [Member] |  |  |
Management Incentive Plan Total Percentage of Pre Tax Earnings |  | 5.15% | 4.96%
Management Incentive Plan Total Amount Paid |  | $ 474,300 | $ 332,940
Journal Technologies [Member] |  |  |
Management Incentive Plan Total Percentage of Pre Tax Earnings |  | 21.70% | 12.33%
Management Incentive Plan Total Amount Paid |  | $ 455,700 | $ 255,300
Daily Journal Consolidated [Member] |  |  |
Management Incentive Plan Total Percentage of Pre Tax Earnings |  | 11.69% | 12.24%
Management Incentive Plan Total Amount Paid |  | $ 1,295,540 | $ 1,049,750
Product Concentration Risk [Member] | Revenue Benchmark [Member] | License and Service [Member] |  |  |
Concentration Risk, Percentage |  | 71.00% | 69.00%
Minimum [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |
Minimum [Member] | Building and Building Improvements [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 5 years |
Minimum [Member] | Furniture, Office Equipment, and Software [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |
Minimum [Member] | Machinery and Equipment [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |
Maximum [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 39 years |
Maximum [Member] | Building and Building Improvements [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 39 years |
Maximum [Member] | Furniture, Office Equipment, and Software [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 5 years |
Maximum [Member] | Machinery and Equipment [Member] |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 10 years |

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