Deferred Project Costs	12 Months Ended
Dec. 31, 2012
Deferred Project Costs [Abstract]
Deferred Project Costs	Note 7. Deferred Project Costs We have incurred costs associated with three in-process efficiency lighting and water conservation projects as of December 31, 2012. Cost items consist of materials and labor costs to purchase and install products purchased from outside vendors and either are installed or pending installation. At December 31, 2012, the total costs incurred, net of 2012 amounts amortized and written off, total approximately $609,000, of which approximately $33,400 and approximately $575,600 are classified as current and long-term, respectively, on our consolidated balance sheets. At December 31, 2011, the total costs incurred totaled approximately $692,000, of which approximately $46,000 and approximately $646,000 were classified as current and long-term, respectively, on our consolidated balance sheets. Unsuccessful project costs are written off and recorded in cost of revenue earned. During 2012, we amortized approximately $34,000 of these costs to cost of revenue earned and wrote off approximately $57,000 of these costs upon our determination that certain projects would be unsuccessful. During 2011, we amortized approximately $34,000 of these costs to cost of revenue earned and wrote off approximately $32,000 of these costs upon our determination that certain projects would be unsuccessful.

Note 7. Deferred Project Costs

We have incurred costs associated with three in-process efficiency lighting and water conservation projects as of December 31, 2012. Cost items consist of materials and labor costs to purchase and install products purchased from outside vendors and either are installed or pending installation. At December 31, 2012, the total costs incurred, net of 2012 amounts amortized and written off, total approximately $609,000, of which approximately $33,400 and approximately $575,600 are classified as current and long-term, respectively, on our consolidated balance sheets. At December 31, 2011, the total costs incurred totaled approximately $692,000, of which approximately $46,000 and approximately $646,000 were classified as current and long-term, respectively, on our consolidated balance sheets. Unsuccessful project costs are written off and recorded in cost of revenue earned. During 2012, we amortized approximately $34,000 of these costs to cost of revenue earned and wrote off approximately $57,000 of these costs upon our determination that certain projects would be unsuccessful. During 2011, we amortized approximately $34,000 of these costs to cost of revenue earned and wrote off approximately $32,000 of these costs upon our determination that certain projects would be unsuccessful.