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9. Agreements (Tables)

6 Months Ended

Jun. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of working capital agreement activity

		As of and for the three months ended June 30,								As of and for the six months ended June 30,
		2019				2018				2019				2018
Ethanol sales		$	29,808			$	30,129			$	56,997			$	58,341
Wet distiller's grains sales			8,733				8,499				17,336				16,327
Corn oil sales			852				893				1,652				1,816
Corn purchases			30,719				28,760				59,980				56,505
Accounts receivable			1,238				852				1,238				852
Accounts payable			3,118				2,241				3,118				2,241