Note 6 - Capital Stock, Treasury Stock, Contributed Capital and Stock Options (Details) (USD $)	3 Months Ended		6 Months Ended								6 Months Ended											6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended		15 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Oct. 11, 2012 Original Authorized Shares [Member] Common Class A [Member]	Oct. 11, 2012 Original Authorized Shares [Member] Common Class B [Member]	Oct. 11, 2012 Current Authorized Shares [Member] Common Class A [Member]	Oct. 11, 2012 Current Authorized Shares [Member] Common Class B [Member]	Mar. 31, 2014 Employee Stock Option [Member] Employee Plans [Member]	Oct. 11, 2012 Common Class A [Member] 2013 Omnibus Equity Plan [Member]	Mar. 31, 2013 Common Class A [Member] Directors Plans [Member]	Mar. 31, 2014 Common Class A [Member] Directors Plans [Member]	Sep. 30, 2013 Common Class A [Member] Directors Plans [Member]	Mar. 31, 2014 Common Class A [Member]	Sep. 30, 2013 Common Class A [Member]	Mar. 31, 2013 Common Class A [Member]	Oct. 11, 2012 Common Class A [Member]	Mar. 31, 2014 Common Class B [Member]	Sep. 30, 2013 Common Class B [Member]	Mar. 31, 2013 Common Class B [Member]	Oct. 11, 2012 Serial Preferred Shares [Member]	Mar. 31, 2014 2013 Omnibus Equity Plan [Member]	Mar. 31, 2013 Employee Plans [Member]	Mar. 31, 2014 Employee Plans [Member]	Mar. 31, 2014 Directors Plans [Member]	Mar. 31, 2013 Directors Plans [Member]	Mar. 31, 2014 Directors Plans [Member]	Mar. 31, 2013 Directors Plans [Member]	Mar. 31, 2014 Directors Plans [Member]
Note 6 - Capital Stock, Treasury Stock, Contributed Capital and Stock Options (Details) [Line Items]
Common Stock, Shares Authorized					3,750,000	1,000,000	10,000,000	2,500,000						10,000,000	10,000,000	10,000,000		2,500,000	2,500,000	2,500,000	1,000,000
Common Stock, Capital Shares Reserved for Future Issuance										150,000							956,233
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period																						0
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term																								10 years	10 years	10 years	10 years	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted																								0
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit (in Dollars per share)											$ 2.925													$ 2.925
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant									0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	29,000		29,000																					0
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options											31,000	29,000	31,000												29,000		29,000		29,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit (in Dollars per share)											$ 11.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period	2,000	2,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price (in Dollars per share)	$ 7.25	$ 3.67
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term																													3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period																													3 years
Allocated Share-based Compensation Expense (in Dollars)	$ 543	$ 1,751		$ 4,049																							$ 1,208
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate																							5.00%		5.00%		5.00%	5.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate																									0.00%	0.00%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	0.87%	0.87%	0.87%	0.87%