Cost of revenues and general and administrative expenses (Tables)

12 Months Ended

Dec. 31, 2014

Cost of revenues and general and administrative expenses [Abstract]

Cost Of Revenues And General And Administrative Expenses [Table Text Block]

	Year Ended December 31,
	2014		2013		2012
Cost of revenues consist of:
Electricity	$	14,631,638	$	13,634,617	$	14,473,583
Depreciation		5,077,293		4,822,967		6,959,912
Fuel oil		8,726,195		10,106,409		10,078,724
Employee costs		4,630,609		4,422,093		4,423,899
Cost of plant sales		1,470,045		-		-
Maintenance		3,131,947		2,332,893		2,849,453
Retail license royalties		1,405,067		1,357,988		1,451,672
Insurance		1,397,799		1,499,201		1,625,733
Other		1,972,987		2,140,084		1,595,284
	$	42,443,580	$	40,316,252	$	43,458,260
General and administrative expenses consist of:
Employee costs	$	6,314,908	$	6,218,948	$	5,751,142
Insurance		923,089		969,370		968,662
Professional fees		1,424,927		1,005,495		1,183,660
Directors’ fees and expenses		686,228		752,044		533,715
Depreciation		278,478		290,622		421,851
NSC project expenses		3,702,332		3,158,309		1,656,831
Other		3,324,477		3,449,515		4,026,956
	$	16,654,439	$	15,844,303	$	14,542,817