PARENT COMPANY ONLY FINANCIAL INFORMATION - Statements of Income (Details 1) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Condensed Financial Statements, Captions [Line Items] | |||
| Interest income | $ 75,467 | $ 48,597 | $ 48,949 |
| Interest expense | 7,334 | 7,213 | 7,067 |
| Net interest expense | (68,133) | (41,384) | (41,882) |
| Income tax benefit | 9,371 | 6,089 | 4,607 |
| Net income | 18,694 | 11,555 | 10,051 |
| Nicolet Bankshares, Inc | |||
| Condensed Financial Statements, Captions [Line Items] | |||
| Interest income | 58 | 90 | 68 |
| Interest expense | 1,951 | 1,375 | 875 |
| Net interest expense | (1,893) | (1,285) | (807) |
| Dividend income from subsidiaries | 35,500 | 11,000 | 9,060 |
| Operating expense | (202) | (258) | (164) |
| Gain (loss) on investments, net | (500) | 228 | 341 |
| Bargain purchase gain | |||
| Income tax benefit | 833 | 375 | 135 |
| Earnings before equity in undistributed income of subsidiaries | 33,738 | 10,060 | 8,565 |
| Equity in undistributed income (loss) of subsidiaries | (15,276) | 1,368 | 1,384 |
| Net income | $ 18,462 | $ 11,428 | $ 9,949 |