Note 10 - Allowance for Loan Losses and Credit Quality Information (Details) - Impaired Loans and Related Allowances (USD $) | 3 Months Ended | 9 Months Ended | |
In Thousands, unless otherwise specified | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, related allowance | $1,272 | ' | $1,272 | ' | $3,778 |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans, related allowance | 1,272 | ' | 1,272 | ' | 3,778 |
Loans, recorded investment | 12,766 | ' | 12,766 | ' | 21,276 |
Loans, unpaid principal balance | 16,310 | ' | 16,310 | ' | 32,433 |
Loans, average recorded investment | 13,613 | 29,947 | 16,163 | 33,171 | ' |
Loans, interest income recognized | 144 | 366 | 202 | 453 | ' |
WIth No Related Allowance Recorded [Member] | 1-4 Family [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, recorded investment | 303 | ' | 303 | ' | 88 |
Loans with no related allowance recorded, unpaid principal balance | 303 | ' | 303 | ' | 88 |
Loans with no related allowance recorded, related allowance | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, average recorded investment | 234 | 1,589 | 352 | 1,608 | ' |
Loans with no related allowance recorded, interest income recognized | 3 | 31 | 6 | 46 | ' |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans, related allowance | 0 | ' | 0 | ' | 0 |
WIth No Related Allowance Recorded [Member] | Residential Developments [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, recorded investment | 7,586 | ' | 7,586 | ' | 8,257 |
Loans with no related allowance recorded, unpaid principal balance | 10,239 | ' | 10,239 | ' | 13,636 |
Loans with no related allowance recorded, related allowance | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, average recorded investment | 7,691 | 9,127 | 7,688 | 9,338 | ' |
Loans with no related allowance recorded, interest income recognized | 102 | 29 | 112 | 43 | ' |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans, related allowance | 0 | ' | 0 | ' | 0 |
WIth No Related Allowance Recorded [Member] | Commercial Real Estate Other [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, recorded investment | 50 | ' | 50 | ' | 52 |
Loans with no related allowance recorded, unpaid principal balance | 228 | ' | 228 | ' | 52 |
Loans with no related allowance recorded, related allowance | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, average recorded investment | 51 | 335 | 51 | 424 | ' |
Loans with no related allowance recorded, interest income recognized | 5 | 16 | 5 | 18 | ' |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans, related allowance | 0 | ' | 0 | ' | 0 |
WIth No Related Allowance Recorded [Member] | Consumer [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, recorded investment | 469 | ' | 469 | ' | 487 |
Loans with no related allowance recorded, unpaid principal balance | 473 | ' | 473 | ' | 491 |
Loans with no related allowance recorded, related allowance | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, average recorded investment | 456 | 309 | 468 | 315 | ' |
Loans with no related allowance recorded, interest income recognized | 8 | 5 | 10 | 8 | ' |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans, related allowance | 0 | ' | 0 | ' | 0 |
WIth No Related Allowance Recorded [Member] | Construction Industry [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, recorded investment | 84 | ' | 84 | ' | 93 |
Loans with no related allowance recorded, unpaid principal balance | 223 | ' | 223 | ' | 296 |
Loans with no related allowance recorded, related allowance | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, average recorded investment | 86 | 98 | 89 | 90 | ' |
Loans with no related allowance recorded, interest income recognized | 0 | 0 | 0 | 0 | ' |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans, related allowance | 0 | ' | 0 | ' | 0 |
WIth No Related Allowance Recorded [Member] | Commercial Business Other [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, recorded investment | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, unpaid principal balance | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, related allowance | 0 | ' | 0 | ' | 0 |
Loans with no related allowance recorded, average recorded investment | 0 | 0 | 0 | 9 | ' |
Loans with no related allowance recorded, interest income recognized | 0 | 0 | 0 | 0 | ' |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans, related allowance | 0 | ' | 0 | ' | 0 |
1-4 Family [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, related allowance | 277 | ' | 277 | ' | 404 |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans with an allowance recorded, recorded investment | 1,038 | ' | 1,038 | ' | 1,800 |
Loans with an allowance recorded, unpaid principal balance | 1,038 | ' | 1,038 | ' | 1,844 |
Loans, related allowance | 277 | ' | 277 | ' | 404 |
Loans with an allowance recorded, average recorded investment | 1,606 | 2,272 | 1,651 | 2,571 | ' |
Loans with an allowance recorded, interest income recognized | 6 | 6 | 13 | 19 | ' |
Loans, recorded investment | 1,341 | ' | 1,341 | ' | 1,888 |
Loans, unpaid principal balance | 1,341 | ' | 1,341 | ' | 1,932 |
Loans, average recorded investment | 1,840 | 3,861 | 2,003 | 4,179 | ' |
Loans, interest income recognized | 9 | 37 | 19 | 65 | ' |
Residential Developments [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, related allowance | 223 | ' | 223 | ' | 2,260 |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans with an allowance recorded, recorded investment | 1,216 | ' | 1,216 | ' | 7,994 |
Loans with an allowance recorded, unpaid principal balance | 1,217 | ' | 1,217 | ' | 12,725 |
Loans, related allowance | 223 | ' | 223 | ' | 2,260 |
Loans with an allowance recorded, average recorded investment | 1,153 | 12,031 | 3,521 | 13,519 | ' |
Loans with an allowance recorded, interest income recognized | 0 | 27 | 0 | 41 | ' |
Loans, recorded investment | 8,802 | ' | 8,802 | ' | 16,251 |
Loans, unpaid principal balance | 11,456 | ' | 11,456 | ' | 26,361 |
Loans, average recorded investment | 8,844 | 21,158 | 11,209 | 22,857 | ' |
Loans, interest income recognized | 102 | 56 | 112 | 84 | ' |
Commercial Real Estate Other [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, related allowance | 161 | ' | 161 | ' | 143 |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans with an allowance recorded, recorded investment | 862 | ' | 862 | ' | 888 |
Loans with an allowance recorded, unpaid principal balance | 862 | ' | 862 | ' | 888 |
Loans, related allowance | 161 | ' | 161 | ' | 143 |
Loans with an allowance recorded, average recorded investment | 866 | 1,856 | 874 | 2,249 | ' |
Loans with an allowance recorded, interest income recognized | 9 | 228 | 24 | 232 | ' |
Loans, recorded investment | 912 | ' | 912 | ' | 940 |
Loans, unpaid principal balance | 1,090 | ' | 1,090 | ' | 940 |
Loans, average recorded investment | 917 | 2,191 | 925 | 2,673 | ' |
Loans, interest income recognized | 14 | 244 | 29 | 250 | ' |
Consumer [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, related allowance | 431 | ' | 431 | ' | 382 |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans with an allowance recorded, recorded investment | 473 | ' | 473 | ' | 429 |
Loans with an allowance recorded, unpaid principal balance | 490 | ' | 490 | ' | 429 |
Loans, related allowance | 431 | ' | 431 | ' | 382 |
Loans with an allowance recorded, average recorded investment | 489 | 998 | 479 | 1,221 | ' |
Loans with an allowance recorded, interest income recognized | 3 | 7 | 9 | 18 | ' |
Loans, recorded investment | 942 | ' | 942 | ' | 916 |
Loans, unpaid principal balance | 963 | ' | 963 | ' | 920 |
Loans, average recorded investment | 945 | 1,307 | 947 | 1,536 | ' |
Loans, interest income recognized | 11 | 12 | 19 | 26 | ' |
Construction Industry [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, related allowance | 0 | ' | 0 | ' | 0 |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans with an allowance recorded, recorded investment | 0 | ' | 0 | ' | 0 |
Loans with an allowance recorded, unpaid principal balance | 0 | ' | 0 | ' | 0 |
Loans, related allowance | 0 | ' | 0 | ' | 0 |
Loans with an allowance recorded, average recorded investment | 0 | 0 | 0 | 36 | ' |
Loans with an allowance recorded, interest income recognized | 0 | 0 | 0 | 0 | ' |
Loans, recorded investment | 84 | ' | 84 | ' | 93 |
Loans, unpaid principal balance | 223 | ' | 223 | ' | 296 |
Loans, average recorded investment | 86 | 98 | 89 | 126 | ' |
Loans, interest income recognized | 0 | 0 | 0 | 0 | ' |
Commercial Business Other [Member] | ' | ' | ' | ' | ' |
Financing Receivable, Impaired [Line Items] | ' | ' | ' | ' | ' |
Loans with no related allowance recorded, related allowance | 180 | ' | 180 | ' | 589 |
Loans with an allowance recorded: | ' | ' | ' | ' | ' |
Loans with an allowance recorded, recorded investment | 685 | ' | 685 | ' | 1,188 |
Loans with an allowance recorded, unpaid principal balance | 1,237 | ' | 1,237 | ' | 1,984 |
Loans, related allowance | 180 | ' | 180 | ' | 589 |
Loans with an allowance recorded, average recorded investment | 981 | 1,332 | 990 | 1,791 | ' |
Loans with an allowance recorded, interest income recognized | 8 | 17 | 23 | 28 | ' |
Loans, recorded investment | 685 | ' | 685 | ' | 1,188 |
Loans, unpaid principal balance | 1,237 | ' | 1,237 | ' | 1,984 |
Loans, average recorded investment | 981 | 1,332 | 990 | 1,800 | ' |
Loans, interest income recognized | $8 | $17 | $23 | $28 | ' |