FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Securities available for sale	$ 130,923	$ 119,968
Equity Securities [Member]
Securities available for sale	5	5
Mortgage Backed Securities [Member]
Securities available for sale	67,698	64,046
US Treasury Securities and Obligations of US Government Corporations and Agencies [Member]
Securities available for sale	34,601	31,222
Municipal Notes [Member]
Securities available for sale	28,619	23,134
Corporate bonds & other obligations [Member]
Securities available for sale		1,561
Fair Value [Member]
Securities available for sale	130,923	119,968
Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale	1,838	2,292
Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale	127,798	116,392
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale	1,287	1,284
Carrying Value [Member]
Securities available for sale	130,923	119,968
Recurring [Member] \| Fair Value [Member]
Securities available for sale	130,923	119,968
Recurring [Member] \| Fair Value [Member] \| Equity Securities [Member]
Securities available for sale	5	5
Recurring [Member] \| Fair Value [Member] \| Mortgage Backed Securities [Member]
Securities available for sale	67,698	64,046
Recurring [Member] \| Fair Value [Member] \| US Treasury Securities and Obligations of US Government Corporations and Agencies [Member]
Securities available for sale	34,601	31,222
Recurring [Member] \| Fair Value [Member] \| Municipal Notes [Member]
Securities available for sale	28,619	23,134
Recurring [Member] \| Fair Value [Member] \| Corporate bonds & other obligations [Member]
Securities available for sale		1,561
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale	1,838	2,262
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Municipal Notes [Member]
Securities available for sale	1,838	2,262
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale	127,798	116,422
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Mortgage Backed Securities [Member]
Securities available for sale	67,698	64,046
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| US Treasury Securities and Obligations of US Government Corporations and Agencies [Member]
Securities available for sale	33,319	29,943
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Municipal Notes [Member]
Securities available for sale	26,781	20,872
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Corporate bonds & other obligations [Member]
Securities available for sale		1,561
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale	1,287	1,284
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Equity Securities [Member]
Securities available for sale	5	5
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| US Treasury Securities and Obligations of US Government Corporations and Agencies [Member]
Securities available for sale	$ 1,282	$ 1,279

First Federal of Northern Michigan Bancorp, Inc. 10-Q