Note 24 - Subsequent Events	12 Months Ended
Dec. 31, 2013
Subsequent Events [Abstract]
Subsequent Events [Text Block]	NOTE 24 — SUBSEQUENT EVENTS Cash dividend On February 25, 2014, the Company’s Board of Directors declared, approved and authorized payment of a quarterly dividend of $2.7 million ($0.06 per share) to all holders of the Company’s issued and outstanding shares of common stock on March 13, 2014, payable on March 27, 2014. PPA extension for Zunil power plant in Guatemala On January 22, 2014, the Company, through its wholly owned subsidiary signed an amendment to the PPA with Instituto Nacional de Electrificacion (“INDE”) for its Zunil geothermal power plant in Guatemala. The amendment extends the term of the PPA from 2019 to 2034. The PPA amendment also transfers operation and management responsibilities of the Zunil geothermal field from INDE to the Company for the term of the amended PPA in exchange for a tariff increase. Additionally, INDE exercised its right under the PPA to become a partner in the Zunil power plant with 3% equity interest.

Note 24 - Subsequent Events

12 Months Ended

Dec. 31, 2013

NOTE 24 — SUBSEQUENT EVENTS

Cash dividend

On February 25, 2014, the Company’s Board of Directors declared, approved and authorized payment of a quarterly dividend of $2.7 million ($0.06 per share) to all holders of the Company’s issued and outstanding shares of common stock on March 13, 2014, payable on March 27, 2014.

PPA extension for Zunil power plant in Guatemala

On January 22, 2014, the Company, through its wholly owned subsidiary signed an amendment to the PPA with Instituto Nacional de Electrificacion (“INDE”) for its Zunil geothermal power plant in Guatemala. The amendment extends the term of the PPA from 2019 to 2034. The PPA amendment also transfers operation and management responsibilities of the Zunil geothermal field from INDE to the Company for the term of the amended PPA in exchange for a tariff increase. Additionally, INDE exercised its right under the PPA to become a partner in the Zunil power plant with 3% equity interest.