Quarterly Financial Data (Unaudited) Quarterly Financial Data (Unaudited) Text Tag (Details) - USD ($) $ in Thousands	3 Months Ended								9 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2016	Mar. 31, 2017	Mar. 31, 2016		Mar. 31, 2015
Other										$ 8,899	$ 8,744	[1],[2]
Total non-interest expense	$ 8,163	$ 6,957	$ 6,771	$ 6,640	$ 8,413	$ 7,401	$ 6,365	$ 5,938		28,531	28,117	[1]
Loan fees and service charges										407	419	[1],[3]
Advances and other borrowed money										1,257	1,336	[1],[4]
Quantifying Misstatement in Current Year Financial Statements, Amount	$ 1,700									1,000	666		$ 361
Restatement of Prior Year Income, Gross										$ 1,200	865		$ 285
Restatement Adjustment
Other											666
Total non-interest expense		$ (254)	$ 198	$ 53	$ 229	$ 187	$ 163	$ 87			666
Loan fees and service charges									$ 78		(521)
Advances and other borrowed money											$ 66

[1] (1) March 31, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 19 for further detail.

[2] (1) March 31, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 19 for further detail.

[3] (1) March 31, 2015 and 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 19 for further detail.

[4] (a) March 31, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 19 for further detail.