Note 2. Balance Sheet Data: Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy (Policies)	12 Months Ended
Dec. 31, 2014
Policies
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy	For 2013 through the first quarter of 2014, the Company did not take a charge for depreciation on certain assets located at its demo fuel site in Pennsylvania, because these assets were not producing or expected to produce revenue during that time. We resumed depreciation in the second quarter of 2014 when we received the US EPA approval letter in June which made the equipment available to be used for demonstration and testing.

Note 2. Balance Sheet Data: Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy (Policies)

12 Months Ended

Dec. 31, 2014

Policies

Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy

For 2013 through the first quarter of 2014, the Company did not take a charge for depreciation on certain assets located at its demo fuel site in Pennsylvania, because these assets were not producing or expected to produce revenue during that time. We resumed depreciation in the second quarter of 2014 when we received the US EPA approval letter in June which made the equipment available to be used for demonstration and testing.