Note 4 - Debt (Details) (USD $) | 3 Months Ended | 6 Months Ended | 9 Months Ended | 15 Months Ended | | 1 Months Ended | | 1 Months Ended | 3 Months Ended | 1 Months Ended | | | | 9 Months Ended |
Dec. 31, 2015 | Jun. 19, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Dec. 31, 2012 | Jun. 20, 2012 | Jun. 20, 2012 | Jun. 20, 2012 | Jun. 20, 2012 | Sep. 30, 2013 | Dec. 31, 2013 | Mar. 31, 2014 | Jun. 30, 2014 | Sep. 30, 2014 | Dec. 31, 2014 | Mar. 31, 2015 | Jun. 30, 2015 | Sep. 30, 2015 | Dec. 31, 2015 | Mar. 31, 2017 | Jun. 30, 2013 | Jun. 20, 2012 | Jun. 20, 2012 | Sep. 30, 2013 | Jun. 20, 2012 | Mar. 31, 2017 | Sep. 30, 2013 | Sep. 30, 2013 |
Pik Loans To Cumulative Convertible Preferred Stock [Member] | Next Third [Member] | Last Third [Member] | Warrant [Member] | Commencing In Quarterly Period Ending September 30, 2013 [Member] | Commencing In Quarterly Period Ending December 31 2013 [Member] | Commencing In Quarterly Period Ending March 31 2014 [Member] | Commencing In Quarterly Period Ending June 30 2014 [Member] | Commencing In Quarterly Period Ending September 30, 2014 [Member] | Commencing In Quarterly Period Ending December 31 2014 [Member] | Commencing In Quarterly Period Ending March 31 2015 [Member] | Commencing In Quarterly Period Ending June 30 2015 [Member] | Commencing In Quarterly Period Ending September 30 2015 [Member] | Commencing In Quarterly Period Ending December 31 2015 [Member] | Declining In Intervals Till Quarterly Period Ending March 31, 2017 Upon Extension Of Termination Date [Member] | Commencing In Quarterly Period Ending June 30, 2013 [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Minimum [Member] | Maximum [Member] |
Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Fourth Amended and Restated Credit Agreement [Member] | Loans Payable [Member] | Line Of Credit Converted To Term Loan [Member] | Liquidity Facility [Member] | Liquidity Facility [Member] | | | |
Note 4 - Debt (Details) [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Debt Conversion, Converted Instrument, Amount (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $1,129,478,741 | ' | ' | ' | ' | ' |
Debt Instrument, Maturity Date | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 31-Dec-15 | ' | ' | ' | ' | ' | ' |
Collateral Coverage Ratio To Be Maintained On Term Loan Maturity Date | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | '80% | ' | ' | ' | ' | ' | ' |
Debt Instrument Extended Date Period | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | '18 months | ' | ' | ' | ' | ' | ' |
Debt Instrument Extended Maturity Date | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 30-Jun-17 | ' | ' | ' | ' | ' | ' |
Cash Balance Resulting In Mandatory Repayments Of Term Loan Principal (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 20,000,000 | ' | ' | ' | ' | ' | ' |
Debt Instrument Initial Cash Margin | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3.50% | ' | ' | ' | ' | ' | ' |
Debt Instrument Initial Paid In Kind Margin | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2.50% | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 20,000,000 | ' | ' | ' |
Par Value Per Share For Conversion Of Pik Loans Into Shares Of Cumulative Convertible Preferred Stock (in Dollars per share) | ' | ' | ' | ' | ' | ' | $10 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Long-term Debt, Excluding Current Maturities (in Dollars) | ' | ' | 1,129,478,741 | ' | 1,129,478,741 | 1,129,478,741 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Payment In Kind Loan (in Dollars) | ' | ' | 37,112,217 | ' | 37,112,217 | 15,387,468 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Deferred Finance Costs, Net (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 12,636,295 | ' | ' | ' | ' |
Maximum Leverage Ratio Of Term Loan Indebtedness To Ebitda To Be Maintained | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | '13.9:1 | '12.3:1 | '10.6:1 | '9.2:1 | '8.5:1 | '8.1:1 | '7.8:1 | '7.6:1 | '7.5:1 | '7.3:1 | '6.2:1 | ' | ' | ' | ' | ' | ' | ' | ' |
Minimum Interest Coverage Ratio Of Term Loan Indebtedness To Ebitda To Be Maintained | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 140.00% | 160.00% | 180.00% | 200.00% | 210.00% | 220.00% | 220.00% | 220.00% | 220.00% | 220.00% | 230.00% | 130.00% | ' | ' | ' | ' | ' | ' | ' |
Free Cash To Be Maintained With Agent Per Vessel (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 500,000 | ' | ' |
Maximum Collateral Coverage Ratio Of Term Loan Indebtedness To Ebitda To Be Maintained | 80.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 100.00% | ' | ' | ' | ' | ' | 70.00% | ' | ' | ' | ' | ' | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted (in Shares) | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,148,584 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights 1 (in Dollars per share) | ' | ' | ' | ' | ' | ' | ' | ' | ' | $0.01 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Common Stock, Par or Stated Value Per Share (in Dollars per share) | ' | ' | $0.01 | ' | $0.01 | $0.01 | ' | ' | ' | $0.01 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share) | ' | ' | ' | ' | ' | ' | ' | $10 | $12 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in Dollars per share) | ' | ' | ' | ' | ' | ' | ' | ' | ' | $7,200,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price (in Dollars per share) | ' | ' | ' | ' | ' | ' | ' | ' | ' | $2.98 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.64% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | ' | ' | ' | ' | ' | ' | ' | ' | ' | 79.30% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | ' | ' | ' | ' | ' | ' | ' | ' | ' | '10 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Debt Instrument, Interest Rate During Period | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3.64% | 7.40% |
Debt Instrument, Basis Spread on Variable Rate | ' | 2.50% | ' | ' | 3.50% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Debt, Weighted Average Interest Rate | ' | ' | 3.98% | ' | 3.98% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Interest Paid Excluding Payment In Kind (in Dollars) | ' | ' | $36,124,215 | $33,326,847 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |