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Receivable | 12 Months Ended
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Dec. 31, 2011
Accounts Receivable |
Receivable | 4. Accounts receivable
|  | December 31 |
|  | 2011 |  |  | 2010 |
Trade accounts receivable |  | $ | 8,079,194 |  |  | $ | 11,956,314 |
Receivable from affiliate |  |  | 144,291 |  |  |  | 138,445 |
Other accounts receivable |  |  | 473,881 |  |  |  | 198,105 |
|  |  | 8,697,366 |  |  |  | 12,292,864 |
Allowance for doubtful accounts |  |  | (160,134 | ) |  |  | (160,134 | )
|  | $ | 8,537,232 |  |  | $ | 12,132,730 |
The activity for the allowance for doubtful accounts consisted of:
|  | December 31, |
|  | 2011 |  |  | 2010 |
Opening allowance for doubtful accounts |  | $ | 160,134 |  |  | $ | 276,994 |
Recovery of doubtful accounts |  |  | - |  |  |  | (116,860 | )
Ending allowance for doubtful accounts |  | $ | 160,134 |  |  | $ | 160,134 |
Significant concentrations of credit risk are disclosed in Note 21.
Loans Receivable |
Receivable | 6. Loans receivable
|  | December 31, |
|  | 2011 |  |  | 2010 |
All loans receivable are due from the Water Authority-Cayman and consisted of: |  |  |  |  |  |
Two loans originally aggregating $10,996,290, bearing interest at 6.5% per annum, receivable in monthly installments of $124,827 to May 2019, and secured by the machinery and equipment of the North Side Water Works plant |  | $ | 8,798,106 |  |  | $ | 9,692,895 |
Two loans originally aggregating $1,738,000, bearing interest at 5% per annum, receivable in monthly installments of $24,565 to March 2014, and secured by the machinery and equipment of the North Sound plant |  |  | 626,070 |  |  |  | 882,544 |
Two loans originally aggregating $3,671,000, bearing interest at 6.5% per annum, receivable in monthly installments of $54,513 to June 2017, and secured by the machinery and equipment of the Red Gate plant |  |  | 3,018,190 |  |  |  | 3,460,369 |
Two loans originally aggregating $897,000, bearing interest at 5% per annum, receivable in monthly installments of $12,678 to January 2013, and secured by the machinery and equipment of the Lower Valley plant |  |  | 160,107 |  |  |  | 300,410 |
Total loans receivable |  |  | 12,602,473 |  |  |  | 14,336,218 |
Less current portion |  |  | 1,843,600 |  |  |  | 1,733,799 |
Loans receivable, excluding current portion |  | $ | 10,758,873 |  |  | $ | 12,602,419

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- Definition The entire disclosure for claims held for amounts due a company. Examples include trade accounts receivables, notes receivables, loans receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5066-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5162-111524 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph k Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5074-111524 + Details
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