| In millions, except per share items | Mar-31-18 | Mar-31-17 | Mar-31-16 | Mar-31-15 | Mar-31-14 | Mar-31-13 | Mar-31-12 | Mar-31-11 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K/A | 10-K | S-1/A |
| Interest revenue | | | | | | | | |
| Loans, including fees | 16.1 | 14.8 | 9.6 | 7.3 | 8.1 | 9.0 | 10.0 | |
| U.S. treasuries, government agencies and FHLB stock | 0.2 | 0.2 | | | | | | |
| Municipal and corporate bonds | 0.4 | 0.3 | | | | | | |
| Mortgage-backed securities | 1.2 | 1.2 | 1.1 | 1.5 | 1.6 | 1.5 | 1.8 | |
| Federal funds sold and other bank deposits | 0.1 | 0.2 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | |
| Total interest revenue | 18.1 | 16.8 | 11.3 | 9.4 | 10.2 | 10.9 | 12.5 | 11.7 |
| |
| Interest expense | | | | | | | | |
| Deposits | 2.8 | 2.6 | 1.7 | 1.7 | 1.9 | 2.8 | 3.9 | 5.3 |
| Borrowed funds | 0.8 | 0.3 | 0.1 | 0.0 | | | | |
| Total interest expense | 3.6 | 2.9 | 1.8 | 1.7 | 1.9 | 2.8 | 3.9 | 5.3 |
| Net interest income | 14.5 | 13.9 | 9.5 | 7.7 | 8.3 | 8.1 | 8.6 | 17.0 |
| Provision for loan losses | 1.6 | 3.4 | 0.4 | 0.2 | 1.9 | 1.7 | 2.7 | 0.6 |
| Net interest income after provision for loan losses | 12.9 | 10.5 | 9.0 | 7.6 | 6.4 | 6.4 | 5.9 | |
| |
| Noninterest revenue | | | | | | | | |
| Service charges | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.2 | 0.2 | 0.2 |
| Gain on sale of loans held for sale | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Gain on sale of property and equipment | 0.1 | 0.0 | 0.4 | 0.0 | 0.1 | 0.0 | | |
| Earnings on bank-owned life insurance | 0.5 | 0.5 | 0.3 | 0.4 | 0.4 | 0.3 | 0.3 | |
| Other | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | |
| Total noninterest revenue | 2.0 | 1.1 | 1.6 | 1.1 | 1.1 | 0.9 | 0.9 | 1.0 |
| |
| Noninterest expenses | | | | | | | | |
| Salaries | 5.7 | 5.3 | 4.1 | 3.9 | 3.4 | 2.9 | 2.5 | |
| |
| Employee benefits | | | | | | | | |
| Occupancy | 1.0 | 1.0 | 0.8 | 0.7 | 0.9 | 0.9 | 0.8 | |
| Advertising | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.4 | 0.3 | |
| Furniture and equipment | 0.3 | 0.4 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 | |
| Data processing | 0.7 | 0.8 | 0.6 | 0.5 | 0.6 | 0.6 | 0.4 | |
| Legal services | 0.5 | 0.3 | 0.2 | 0.3 | 0.5 | 0.1 | | |
| Other professional services | 0.9 | 1.0 | 0.4 | 0.4 | 0.5 | 0.2 | 0.2 | |
| |
| Merger related expenses | | | | | | | | |
| Deposit insurance premiums | 0.3 | 0.3 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | |
| Foreclosed real estate expense and losses | 0.0 | 0.0 | 0.0 | 0.2 | | | 0.0 | |
| Other operating | 1.7 | 1.8 | 1.5 | 1.3 | | | | |
| Total noninterest expense | 12.9 | 13.2 | 10.3 | 9.3 | 9.7 | 7.8 | 6.8 | 6.2 |
| Income before income taxes | 2.0 | -1.7 | 0.3 | -0.7 | -2.2 | -0.5 | 0.0 | 1.6 |
| Income tax expense | 8.1 | -0.8 | 0.4 | -0.3 | -1.0 | -0.3 | -0.1 | |
| Tax rate | 402.0% | 44.9% | 128.1% | 51.8% | 45.3% | 64.1% | | 0.0% |
| Net (loss) income | -6.0 | -0.9 | -0.1 | -0.3 | -1.2 | -0.2 | 0.1 | |
| |
| Net (loss) income per common share: | | | | | | | | |
| Basic (in dollars per share) | 0.0 | 0.0 | 0.0 | 0.0 | | | | |
| |
| Diluted (in dollars per share) | ($1.90) | ($0.29) | ($0.03) | ($0.10) | ($0.35) | ($0.05) | | |