XML 29 R19.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Earnings Per Share (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | Amounts reported in earnings per share reflect earnings available to common stockholders for the period divided by the weighted average number of shares of common stock outstanding during the period, exclusive of unearned BankFinancial, NA Employee Stock Ownership Plan (the "ESOP") shares in 2017 and unvested restricted stock shares. Stock options and restricted stock are regarded as potential common stock and are considered in the diluted earnings per share calculations to the extent that they would have a dilutive effect if converted to common stock.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Net income available to common stockholders | $ | 3,737 |  |  | $ | 3,560 |  |  | $ | 11,926 |  |  | $ | 8,013 |
Average common shares outstanding | 17,365,679 |  |  | 18,140,599 |  |  | 17,641,743 |  |  | 18,567,796 |
Less: |  |  |  |  |  |  |
Unearned ESOP shares | — |  |  | — |  |  | — |  |  | (198,114 | )
Unvested restricted stock shares | — |  |  | (940 | ) |  | (435 | ) |  | (940 | )
Weighted average common shares outstanding | 17,365,679 |  |  | 18,139,659 |  |  | 17,641,308 |  |  | 18,368,742 |
Add - Net effect of dilutive unvested restricted stock | — |  |  | 450 |  |  | — |  |  | 428 |
Diluted weighted average common shares outstanding | 17,365,679 |  |  | 18,140,109 |  |  | 17,641,308 |  |  | 18,369,170 |
Basic earnings per common share | $ | 0.22 |  |  | $ | 0.20 |  |  | $ | 0.68 |  |  | $ | 0.44 |
Diluted earnings per common share | $ | 0.22 |  |  | $ | 0.20 |  |  | $ | 0.68 |  |  | $ | 0.44 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration