Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions and Related Transactions - Purchase Price Allocation (Details)

v2.4.0.6
Business Acquisitions and Related Transactions - Purchase Price Allocation (Details) (USD $)
1 Months Ended
Jul. 31, 2011
AEG [Member]
Aug. 31, 2011
Ameresco Southwest [Member]
Dec. 31, 2011
AIS [Member]
Business Acquisition [Line Items]      
Cash $ 314,642 $ 0 $ 0
Accounts receivable 4,138,015 14,149,703 0
Costs and estimated earnings in excess of billings 0 11,269,294 163,340
Inventory 0 0 47,193
Prepaid expenses and other current assets 62,345 33,329 0
Project development costs 0 0 130,044
Property and equipment and project assets 7,301 6,447,299 216,297
Goodwill 8,728,169 16,545,434 1,549,467
Intangible assets 4,904,000 7,019,000 2,557,000
Other assets 52,062 0 0
Accounts payable (1,610,734) (1,992,748) 0
Accrued liabilities (1,011,032) (3,414,198) (65,627)
Billings in excess of cost and estimated earnings 0 0 (100,573)
Deferred taxes and other liabilities (3,591,532) 0 0
Purchase price 11,993,236 50,057,113 4,497,141
Total, net of cash received 11,678,594 50,057,113 4,497,141
Total fair value of consideration $ 11,993,236 $ 50,057,113 $ 4,497,141