Note 2 - Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended										3 Months Ended	12 Months Ended										12 Months Ended						0 Months Ended	10 Months Ended	12 Months Ended		0 Months Ended	1 Months Ended	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Daily Journal Non-Consolidated [Member]	Sep. 30, 2012 Daily Journal Non-Consolidated [Member]	Sep. 30, 2013 Sustain Technologies, Inc. [Member]	Sep. 30, 2012 Sustain Technologies, Inc. [Member]	Sep. 30, 2013 Daily Journal Consolidated [Member]	Sep. 30, 2012 Daily Journal Consolidated [Member]	Sep. 30, 2013 Net of Taxes [Member]	Sep. 30, 2012 Net of Taxes [Member]	Sep. 30, 2013 Fair Value Adjustment Due to Goodwill Impairment [Member] New Dawn [Member]	Sep. 30, 2013 Building and Building Improvements [Member] Minimum [Member]	Sep. 30, 2013 Building and Building Improvements [Member] Maximum [Member]	Sep. 30, 2013 Furniture, Office Equipment, and Software [Member] Minimum [Member]	Sep. 30, 2013 Furniture, Office Equipment, and Software [Member] Maximum [Member]	Sep. 30, 2013 Machinery and Equipment [Member] Minimum [Member]	Sep. 30, 2013 Machinery and Equipment [Member] Maximum [Member]	Dec. 04, 2012 Deferred Maintenance Agreement [Member] Preliminary Allocated Purchase Price [Member] ISD [Member]	Dec. 04, 2012 Deferred Maintenance Agreement [Member] New Dawn [Member]	Dec. 04, 2012 Deferred Installation Contracts [Member] New Dawn [Member]	Dec. 04, 2012 Claims by Customers [Member] New Dawn [Member]	Sep. 30, 2013 Management Incentive Plan, Future Commitment [Member]	Sep. 30, 2013 Product Concentration Risk [Member] Sales [Member]	Dec. 04, 2012 Preliminary Allocated Purchase Price [Member] ISD [Member] Purchased Software and Customer Relationship [Member]	Dec. 04, 2012 Preliminary Allocated Purchase Price [Member] ISD [Member]	Sep. 30, 2013 New Dawn [Member] Purchased Software and Customer Relationship [Member]	Dec. 04, 2012 New Dawn [Member] Purchased Software and Customer Relationship [Member]	Dec. 04, 2012 New Dawn [Member]	Sep. 30, 2013 New Dawn [Member]	Sep. 30, 2013 New Dawn [Member]	Sep. 30, 2013 ISD [Member] Purchased Software and Customer Relationship [Member]	Sep. 13, 2013 ISD [Member]	Sep. 30, 2013 ISD [Member]	Sep. 30, 2013 ISD [Member]	Sep. 30, 2013 Purchased Software and Customer Relationship [Member]	Sep. 30, 2013 Minimum [Member]	Sep. 30, 2013 Maximum [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Available-for-sale Securities	$ 136,994,000	$ 102,956,000
Available-for-sale Securities, Gross Unrealized Gain (Loss)	89,018,000	52,464,000
Deferred Tax Liabilities, Investments	34,610,000	20,898,000
Available-for-sale Securities, Gross Unrealized Gain		54,653,000
Available-for-sale Securities, Gross Unrealized Loss		2,189,000
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	1,719,000	2,855,000							1,051,000	1,720,000
Payments to Acquire Businesses, Gross																												14,000,000				16,000,000
Business Acquisition, Transaction Costs																												96,000				202,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual																													10,403,000				784,000	784,000
Business Combination Pro Forma Information Expenses Since Acquisition Date Actual																													10,625,000				694,000	694,000
Amortization of Intangible Assets	1,865,000	0																											1,587,000				278,000	278,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual																													222,000				90,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Tangible Assets																									4,410,000			4,805,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents																									2,546,000			2,122,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets																									87,000			1,881,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables																									1,636,000			660,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment																									141,000			142,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles																								16,702,000			9,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable																												12,090,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other																					1,100,000				2,270,000			2,334,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue																		2,842,000	2,200,000	7,472,000
Goodwill	11,700,000																											11,700,000
Goodwill Amortization Period for Tax Purposes																														15 years
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life																														5 years	15 years
Increase (Decrease) in Prepaid Expense and Other Assets	(252,000)	9,000									1,760,000
Increase (Decrease) in Accrued Liabilities	(3,016,000)	(1,415,000)									(540,000)
Goodwill, Impairment Loss											(2,300,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities																									5,112,000
Business Combination, Pro Forma Information, Disclosure Impracticable, Interest Expense	133,000	221,000
Business Combination, Pro Forma Information, Disclosure Impracticable, Intangible Amortization	3,370,000	5,235,000
Finite-Lived Intangible Assets, Net																										7,913,000					16,424,000
Finite-Lived Intangible Assets, Accumulated Amortization																										1,587,000					278,000
Finite-Lived Intangible Asset, Useful Life																																			5 years
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	5,235,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	5,235,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	5,235,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	5,235,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	3,397,000
Property, Plant and Equipment, Useful Life												5 years	39 years	3 years	5 years	3 years	10 years																			3 years	39 years
Depreciation, Depletion and Amortization	2,441,000	503,000
Concentration Risk, Percentage																							37.00%
Management Incentive Plan Total Percentage Of Pre Tax Earnings			3.66%	3.60%	7.95%	8.23%	8.20%	8.20%
Management Incentive Plan Total Amount Paid			351,120	513,500	0	0	241,240	701,520
Other Accrued Liabilities																						1,620,000
Increase (Decrease) in Other Accrued Liabilities																						$ (1,610,000)
Other Accrued Liabilities, Impact On Earnings Per Share (in Dollars per share)																						$ (0.92)
Weighted Average Number of Shares Outstanding, Basic and Diluted (in Shares)	1,380,746	1,380,746
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years