Note 26 - Subsequent Events	12 Months Ended
Dec. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 26 SUBSEQUENT EVENTS Exercise of TruPs Repurchase Options and Payment of Deferred Interest In February 2023, the Company entered into amendments to the repurchase agreements described in Note 11, "Derivatives,", that would give the Company an additional discount on the total repurchase price if the Company effected a 100% repurchase on or before March 15, 2023. On March 2, 2023, the Company gave notice to the holders that it intends to exercise its options to repurchase 100% of the principal no later than March 15, 2023. The total amount to be paid will be $56.5 million, which includes a credit for the $2.3 million that the Company previously paid at the time of entering into the repurchase agreements. As a result, the Company will have repurchased $75.5 million of principal and $21.2 million of deferred interest (valued as of December 31, 2022). The Company intends to use currently available funds from working capital to fund the repurchases. In order to execute the repurchase, the Company will have to pay an estimated $4.7 million of deferred interest to the remaining trust preferred debt instrument for which the Company did not have the right to repurchase. After the repurchase is completed, the Company will continue to have $15 million of principal outstanding related to remaining trust preferred debt instrument. Notice of Redemption of Class A Preferred Stock On March 1, 2023, the Company notified holders of its Preferred Shares of its intention to redeem all the outstanding Class A Preferred Stock on March 15, 2023 (the “Anticipated Redemption Date”). The Company anticipates redeeming all Class A Preferred Stock that remain outstanding on, and is not converted by, the Anticipated Redemption Date for the price of $25.00 per Preferred Share, plus accrued and unpaid dividends thereon, whether or not declared, up to and including the Anticipated Redemption Date. In the event 100% of the Preferred Shares are redeemed by the Company on the Anticipated Redemption Date, the Company estimates that the aggregate amount required to redeem will be approximately $6.1 million, which would be paid using cash on hand. However, based on discussions with the holders of the Preferred Shares, the Company anticipates that 100% of the Preferred Shares would be converted and, in that case, there would be no cash outlay by the Company. Second Amendment to 2020* KWH Loan* On February 28, 2023, KWH entered into a second amendment to the 2020 KWH Loan (the “KWH DDTL”) that provides for an additional delayed draw term loan in the principal amount of up to $10 million, with a maturity date of December 1, 2025. All or any portion of the KWH DDTL, subject to a $2 million minimum draw amount, may be requested at any time through February 27, 2024. The proceeds are evidenced by an intercompany loan and guarantee between KAI and KWH. The principal amount shall be repaid in quarterly installments in an amount equal to 3.75% of the original amount of the drawn DDTL. Proceeds from certain assets dispositions, as defined, may be required to be used to repay outstanding draws under the DDTL. The KWH DDTL also increases the senior cash flow leverage ratio maximum permissible for certain periods.

Note 26 - Subsequent Events

12 Months Ended

Dec. 31, 2022

Exercise of TruPs Repurchase Options and Payment of Deferred Interest

In February 2023, the Company entered into amendments to the repurchase agreements described in Note 11, "Derivatives,", that would give the Company an additional discount on the total repurchase price if the Company effected a 100% repurchase on or before March 15, 2023. On March 2, 2023, the Company gave notice to the holders that it intends to exercise its options to repurchase 100% of the principal no later than March 15, 2023. The total amount to be paid will be $56.5 million, which includes a credit for the $2.3 million that the Company previously paid at the time of entering into the repurchase agreements. As a result, the Company will have repurchased $75.5 million of principal and $21.2 million of deferred interest (valued as of December 31, 2022). The Company intends to use currently available funds from working capital to fund the repurchases.

In order to execute the repurchase, the Company will have to pay an estimated $4.7 million of deferred interest to the remaining trust preferred debt instrument for which the Company did not have the right to repurchase. After the repurchase is completed, the Company will continue to have $15 million of principal outstanding related to remaining trust preferred debt instrument.

Notice of Redemption of Class A Preferred Stock

On March 1, 2023, the Company notified holders of its Preferred Shares of its intention to redeem all the outstanding Class A Preferred Stock on March 15, 2023 (the “Anticipated Redemption Date”). The Company anticipates redeeming all Class A Preferred Stock that remain outstanding on, and is not converted by, the Anticipated Redemption Date for the price of $25.00 per Preferred Share, plus accrued and unpaid dividends thereon, whether or not declared, up to and including the Anticipated Redemption Date.

In the event 100% of the Preferred Shares are redeemed by the Company on the Anticipated Redemption Date, the Company estimates that the aggregate amount required to redeem will be approximately $6.1 million, which would be paid using cash on hand. However, based on discussions with the holders of the Preferred Shares, the Company anticipates that 100% of the Preferred Shares would be converted and, in that case, there would be no cash outlay by the Company.

Second Amendment to 2020 KWH Loan

On February 28, 2023, KWH entered into a second amendment to the 2020 KWH Loan (the “KWH DDTL”) that provides for an additional delayed draw term loan in the principal amount of up to $10 million, with a maturity date of December 1, 2025. All or any portion of the KWH DDTL, subject to a $2 million minimum draw amount, may be requested at any time through February 27, 2024. The proceeds are evidenced by an intercompany loan and guarantee between KAI and KWH. The principal amount shall be repaid in quarterly installments in an amount equal to 3.75% of the original amount of the drawn DDTL. Proceeds from certain assets dispositions, as defined, may be required to be used to repay outstanding draws under the DDTL. The KWH DDTL also increases the senior cash flow leverage ratio maximum permissible for certain periods.