Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	$ 10,217	$ 13,800
Foreclosed Assets	920	2,116
Total Assets at Fair Value	1,731	2,887
Total liabilities at fair value	0	0
Commercial [Member] \| Fair Value, Inputs, Level 1 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	0	0
Commercial [Member] \| Fair Value, Inputs, Level 2 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	0	0
Commercial [Member] \| Fair Value, Inputs, Level 3 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	77	437
Commercial [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	77	437
Other Commercial Real Estate [Member] \| Fair Value, Inputs, Level 1 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	0	0
Other Commercial Real Estate [Member] \| Fair Value, Inputs, Level 2 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	0	0
Other Commercial Real Estate [Member] \| Fair Value, Inputs, Level 3 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	734	334
Other Commercial Real Estate [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	734	334
Impaired Loans Receivable [Member] \| Fair Value, Inputs, Level 1 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	0	0
Impaired Loans Receivable [Member] \| Fair Value, Inputs, Level 2 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	0	0
Impaired Loans Receivable [Member] \| Fair Value, Inputs, Level 3 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	811	771
Impaired Loans Receivable [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Impaired Loans	811	771
Fair Value, Inputs, Level 1 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Foreclosed Assets	0	0
Total Assets at Fair Value	0	0
Total liabilities at fair value	0	0
Fair Value, Inputs, Level 2 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Foreclosed Assets	0	0
Total Assets at Fair Value	0	0
Total liabilities at fair value	0	0
Fair Value, Inputs, Level 3 [Member]
Note 8 - Fair Value of Financial Instruments (Details) - Fair Value of Assets Measured on Non-Recurring Basis [Line Items]
Foreclosed Assets	920	2,116
Total Assets at Fair Value	1,731	2,887
Total liabilities at fair value	$ 0	$ 0

Oak Ridge Financial Services, Inc. 10-Q