| Financial year end | 
              2007-12-31 | 
              2008-12-31 | 
              2009-12-31 | 
              2010-12-31 | 
              2011-12-31 | 
            
            
            | Income from legacies | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £368,124.00 | 
              £353,888.00 | 
            
            
            | Income from endowments | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Voluntary income | 
              £2,065,543.00 | 
              £1,861,711.00 | 
              £2,314,061.00 | 
              £2,971,303.00 | 
              £4,067,294.00 | 
            
            
            | Activities generating funds | 
              £2,066,348.00 | 
              £3,081,713.00 | 
              £2,772,007.00 | 
              £2,516,781.00 | 
              £2,058,932.00 | 
            
            
            | Income from charitable activities | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Investment income | 
              £30,896.00 | 
              £66,347.00 | 
              £39,003.00 | 
              £25,335.00 | 
              £51,112.00 | 
            
            
            | Other income | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Total income | 
              £4,162,787.00 | 
              £5,009,771.00 | 
              £5,125,071.00 | 
              £5,513,419.00 | 
              £6,177,338.00 | 
            
            
            | Investment gains | 
              £0.00 | 
              £0.00 | 
              £31.00 | 
              £0.00 | 
              £39,608.00 | 
            
            
            | Gains from asset revaluations | 
              £775,454.00 | 
              £0.00 | 
              £-160,400.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Gains on pension fund | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Voluntary income costs | 
              £1,032,492.00 | 
              £1,279,400.00 | 
              £1,040,313.00 | 
              £1,582,759.00 | 
              £1,449,587.00 | 
            
            
            | Fundraising trading costs | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Investment management costs | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Grants to institutions | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Charitable activities costs | 
              £2,082,590.00 | 
              £2,785,477.00 | 
              £2,845,628.00 | 
              £3,635,530.00 | 
              £4,959,805.00 | 
            
            
            | Governance costs | 
              £15,230.00 | 
              £27,596.00 | 
              £16,808.00 | 
              £35,613.00 | 
              £27,543.00 | 
            
            
            | Other expenses | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Total expenses | 
              £3,130,312.00 | 
              £4,092,473.00 | 
              £3,902,749.00 | 
              £5,253,902.00 | 
              £6,436,935.00 | 
            
            
            | Support costs | 
              £884,003.00 | 
              £1,045,909.00 | 
              £2,098,752.00 | 
              £749,370.00 | 
              £2,663,679.00 | 
            
            
            | Depreciation | 
              £57,003.00 | 
              £100,246.00 | 
              £132,013.00 | 
              £46,895.00 | 
              £58,326.00 | 
            
            
            | Reserves | 
              £1,432,153.00 | 
              £2,960,044.00 | 
              £1,832,443.00 | 
              £1,319,882.00 | 
              £3,638,823.00 | 
            
            
            | Fixed assets at start of year | 
              £679,193.00 | 
              £718,451.00 | 
              £714,323.00 | 
              £530,898.00 | 
              £529,031.00 | 
            
            
            | Fixed assets at end of year | 
              £718,451.00 | 
              £714,323.00 | 
              £530,929.00 | 
              £529,031.00 | 
              £2,066,940.00 | 
            
            
            | Fixed investment assets at start of year | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £31.00 | 
            
            
            | Fixed investment assets at end of year | 
              £0.00 | 
              £0.00 | 
              £31.00 | 
              £0.00 | 
              £1,536,411.00 | 
            
            
            | Current investment assets | 
              £10,464.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Cash | 
              £1,763,924.00 | 
              £2,960,044.00 | 
              £4,471,240.00 | 
              £4,861,880.00 | 
              £3,112,050.00 | 
            
            
            | Total current assets | 
              £2,236,471.00 | 
              £3,335,685.00 | 
              £4,723,091.00 | 
              £5,679,675.00 | 
              £4,249,058.00 | 
            
            
            | Creditors within 1 year | 
              £794,318.00 | 
              £972,106.00 | 
              £1,114,196.00 | 
              £1,819,365.00 | 
              £2,146,646.00 | 
            
            
            | Long term creditors or provisions | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Pension assets | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Total assets | 
              £2,160,604.00 | 
              £3,077,902.00 | 
              £4,139,824.00 | 
              £4,389,341.00 | 
              £4,169,352.00 | 
            
            
            | Endowment funds | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Restricted funds | 
              £10,000.00 | 
              £10,000.00 | 
              £10,000.00 | 
              £0.00 | 
              £0.00 | 
            
            
            | Unrestricted funds | 
              £2,150,604.00 | 
              £3,067,902.00 | 
              £4,129,824.00 | 
              £4,389,341.00 | 
              £4,169,352.00 | 
            
            
            | Total funds | 
              £2,160,604.00 | 
              £3,077,902.00 | 
              £4,139,824.00 | 
              £4,389,341.00 | 
              £4,169,352.00 | 
            
            
            | Employees | 
              30 | 
              36 | 
              36 | 
              38 | 
              41 | 
            
            
            | Volunteers | 
              500 | 
              500 | 
               | 
              550 | 
              450 | 
            
            
            | Consolidated accounts | 
              true | 
              true | 
              true | 
              true | 
              true | 
            
            
            | Charity only accounts | 
               | 
               | 
               | 
               | 
               | 
            
            
            | Financial year start | 
              2007-01-01 | 
              2008-01-01 | 
              2009-01-01 | 
              2010-01-01 | 
              2011-01-01 |