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Note 11 - Capital Resources (Details) - Outstanding Junior Subordinated Notes - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | May. 31, 2014
Subordinated Borrowing [Line Items] |  |
Principal balance of notes | $ 119,136 | $ 119,100
Cathay Capital Trust I [Member] |  |
Subordinated Borrowing [Line Items] |  |
Issuance date | Jun. 26, 2003 |
Principal balance of notes | $ 20,619 |
Not redeemable until | Jun. 30, 2008 |
Stated maturity | Jun. 30, 2033 |
Annualized coupon rate | 3-month LIBOR + 3.15% |
Current interest rate | 3.75% |
Date of rate change | Dec. 30, 2015 |
Payable/distribution date | March 30 June 30 September 30 December 30 |
Cathay Statutory Trust I [Member] |  |
Subordinated Borrowing [Line Items] |  |
Issuance date | Sep. 17, 2003 |
Principal balance of notes | $ 20,619 |
Not redeemable until | Sep. 17, 2008 |
Stated maturity | Sep. 17, 2033 |
Annualized coupon rate | 3-month LIBOR + 3.00% |
Current interest rate | 3.53% |
Date of rate change | Dec. 17, 2015 |
Payable/distribution date | March 17 June 17 September 17 December 17 |
Cathay Capital Trust II [Member] |  |
Subordinated Borrowing [Line Items] |  |
Issuance date | Dec. 30, 2003 |
Principal balance of notes | $ 12,887 |
Not redeemable until | Mar. 30, 2009 |
Stated maturity | Mar. 30, 2034 |
Annualized coupon rate | 3-month LIBOR + 2.90% |
Current interest rate | 3.50% |
Date of rate change | Dec. 30, 2015 |
Payable/distribution date | March 30 June 30 September 30 December 30 |
Cathay Capital Trust III [Member] |  |
Subordinated Borrowing [Line Items] |  |
Issuance date | Mar. 28, 2007 |
Principal balance of notes | $ 46,392 |
Not redeemable until | Jun. 15, 2012 |
Stated maturity | Jun. 15, 2037 |
Annualized coupon rate | 3-month LIBOR + 1.48% |
Current interest rate | 1.99% |
Date of rate change | Dec. 15, 2015 |
Payable/distribution date | March 15 June 15 September 15 December 15 |
Cathay Capital Trust IV [Member] |  |
Subordinated Borrowing [Line Items] |  |
Issuance date | May 31, 2007 |
Principal balance of notes | $ 18,619 |
Not redeemable until | Sep. 06, 2012 |
Stated maturity | Sep. 06, 2037 |
Annualized coupon rate | 3-month LIBOR + 1.4% |
Current interest rate | 1.85% |
Date of rate change | Dec. 07, 2015 |
Payable/distribution date | March 6 June 6 September 6 December 6 |

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