Hamilton Bancorp Inactive 10-Q13 Feb 192019 Q3 Quarterly reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
Document And Entity Information - shares	Dec. 31, 2018	Feb. 13, 2019
Document Information [Line Items]
Entity Registrant Name	HAMILTON BANCORP, INC.
Entity Central Index Key	1,551,739
Trading Symbol	hbk
Current Fiscal Year End Date	--03-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding (in shares)		3,416,414
Document Type	10-Q
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,019
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Statements of Fina

Consolidated Statements of Financial Condition (Current Period Unaudited) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Assets
Cash and due from banks	$ 15,175,250	$ 15,488,396
Federal funds sold	11,372,590	7,880,019
Cash and cash equivalents	26,547,840	23,368,415
Certificates of deposit held as investment	499,121	499,189
Securities available for sale, at fair value	65,577,855	75,404,136
Federal Home Loan Bank stock, at cost	2,676,200	3,122,400
Loans	369,456,616	390,420,885
Allowance for loan losses	(3,031,106)	(2,821,903)
Net loans and leases	366,425,510	387,598,982
Premises and equipment, net	3,759,246	3,945,825
Foreclosed real estate	457,778	457,778
Accrued interest receivable	1,448,581	1,468,382
Bank-owned life insurance	17,799,920	17,455,850
Income taxes refundable	40,000	40,000
Goodwill and other intangible assets	9,082,215	9,176,764
Other assets	1,940,161	2,995,741
Total Assets	496,254,427	525,533,462
Liabilities
Noninterest-bearing deposits	27,545,786	29,557,943
Interest-bearing deposits	356,625,156	375,585,032
Total deposits	384,170,942	405,142,975
Borrowings	51,050,000	60,672,140
Advances by borrowers for taxes and insurance	1,059,677	1,962,665
Other liabilities	3,483,868	3,679,550
Total liabilities	439,764,487	471,457,330
Commitments and contingencies
Shareholders' Equity
Common stock, $.01 par value, 100,000,000 shares authorized. Issued and outstanding: 3,416,414 shares at December 31, 2018 and 3,407,613 shares at March 31, 2018	34,164	34,076
Additional paid in capital	32,548,023	32,113,534
Retained earnings	27,339,778	25,920,490
Unearned ESOP shares	(1,925,560)	(2,073,680)
Accumulated other comprehensive loss	(1,506,465)	(1,918,288)
Total shareholders' equity	56,489,940	54,076,132
Total Liabilities and Shareholders' Equity	$ 496,254,427	$ 525,533,462

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Current Period Unaudited) (Parentheticals) - $ / shares	Dec. 31, 2018	Mar. 31, 2018
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	3,416,414	3,407,613
Common stock, outstanding (in shares)	3,416,414	3,407,613

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
Consolidated Statements of Operations (Unaudited) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Interest revenue
Loans, including fees	$ 4,259,628	$ 4,104,127	$ 13,071,517	$ 11,890,765
U.S. treasuries, government agencies and FHLB stock	48,499	37,836	165,402	117,034
Municipal and corporate bonds	94,773	102,847	283,838	329,386
Mortgage-backed securities	271,072	297,851	811,475	951,330
Federal funds sold and other bank deposits	113,357	18,998	337,608	100,145
Total interest revenue	4,787,329	4,561,659	14,669,840	13,388,660
Interest expense
Deposits	1,020,221	714,350	2,815,303	2,044,413
Borrowed funds	328,819	209,926	859,847	502,830
Total interest expense	1,349,040	924,276	3,675,150	2,547,243
Net interest income	3,438,289	3,637,383	10,994,690	10,841,417
Provision for loan losses	80,000	345,000	382,496	625,000
Net interest income after provision for loan losses	3,358,289	3,292,383	10,612,194	10,216,417
Noninterest revenue
Service charges	123,885	109,151	365,434	347,201
Loss on sale of investment securities		(12,736)		(2,356)
Gain on sale of loans held for sale	8,609		34,482
Gain on sale of property and equipment		212,743		212,743
Earnings on bank-owned life insurance	115,419	123,597	344,070	369,991
Other	33,260	29,860	124,177	95,972
Total noninterest revenue	281,173	462,615	868,163	1,023,551
Noninterest expenses
Salaries	1,675,976	1,445,336	4,671,013	4,415,848
Employee benefits	351,670	373,699	1,097,813	1,115,185
Occupancy	253,488	259,595	768,502	759,848
Advertising	21,524	22,487	53,506	63,685
Furniture and equipment	103,400	92,894	272,671	262,632
Data processing	202,915	176,114	604,456	522,469
Legal services	70,115	153,615	138,314	374,610
Other professional services	96,510	218,879	298,045	611,699
Merger related expenses	502,835		558,598
Deposit insurance premiums	56,760	91,470	270,690	222,359
Foreclosed real estate expense and losses	4,447	43,706	13,749	45,005
Other operating	424,505	452,423	1,313,712	1,306,791
Total noninterest expense	3,764,145	3,330,218	10,061,069	9,700,131
Income before income taxes	(124,683)	424,780	1,419,288	1,539,837
Income tax expense		2,351,970		2,663,897
Net (loss) income	$ (124,683)	$ (1,927,190)	$ 1,419,288	$ (1,124,060)
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.04)	$ (0.60)	$ 0.44	$ (0.35)
Diluted (in dollars per share)	$ (0.04)	$ (0.60)	$ 0.44	$ (0.35)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net income (loss)	$ (124,683)	$ (1,927,190)	$ 1,419,288	$ (1,124,060)
Other comprehensive income (loss):
Unrealized gain (loss) on investment securities available for sale	1,110,739	(393,475)	505,094	243,772
Reclassification adjustment for realized loss on investment securities available for sale included in net income		12,736		2,356
Total unrealized gain (loss) on investment securities available for sale	1,110,739	(380,739)	505,094	246,128
Unrealized (loss) gain on derivative transactions	(287,116)	122,388	(93,271)	22,784
Income tax (benefit) expense relating to investment securities available for sale and derivative transactions		(101,906)		73,083
Other comprehensive income (loss)	823,623	(156,445)	411,823	195,829
Total comprehensive income (loss)	$ 698,940	$ (2,083,635)	$ 1,831,111	$ (928,231)

Consolidated Statements of Chan

Consolidated Statements of Changes In Shareholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Unearned ESOP Shares [Member]	AOCI Attributable to Parent [Member]	Total
Balances at Mar. 31, 2017	$ 34,111	$ 31,656,235	$ 31,730,673	$ (2,221,800)	$ (1,407,989)	$ 59,791,230
Net income (loss)			(1,124,060)			(1,124,060)
Unrealized gain on available for sale securities, net of tax effect					149,043	149,043
Unrealized gain on derivative transactions securities, net of tax effect					46,786	46,786
Stock based compensation - options		172,177				172,177
Restricted stock - compensation and activity		173,457				173,457
ESOP shares allocated for release		48,434		148,120		196,554
Balances at Dec. 31, 2017	34,111	32,050,303	30,606,613	(2,073,680)	(1,212,160)	59,405,187
Balances at Mar. 31, 2018	34,076	32,113,534	25,920,490	(2,073,680)	(1,918,288)	54,076,132
Net income (loss)			1,419,288			1,419,288
Unrealized gain on available for sale securities, net of tax effect					505,094	505,094
Unrealized gain on derivative transactions securities, net of tax effect					(93,271)	(93,271)
Stock based compensation - options		184,542				184,542
Restricted stock - compensation and activity	88	192,180				192,268
ESOP shares allocated for release		57,767		148,120		205,887
Balances at Dec. 31, 2018	$ 34,164	$ 32,548,023	$ 27,339,778	$ (1,925,560)	$ (1,506,465)	$ 56,489,940

Consolidated Statements of Ch_2

Consolidated Statements of Changes In Shareholders' Equity (Unaudited) (Parentheticals) - USD ($)	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Unrealized loss on available for sale securities, tax effect	$ 0	$ 97,085
Unrealized gain on derivative transactions, tax effect	$ 0	$ (24,002)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
Consolidated Statements of Cash Flows (Unaudited) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Interest received	$ 15,083,585	$ 13,864,923
Fees and commissions received	493,843	444,472
Interest paid	(4,033,791)	(3,236,631)
Cash paid to suppliers and employees	(8,247,761)	(8,418,190)
Origination of loans held for sale	(1,733,400)
Proceeds from sale of loans held for sale	1,767,882
Income taxes payable (refundable)		31,549
Net cash provided by operating activities	3,330,358	2,686,123
Cash flows from investing activities
Proceeds from maturing and called securities available for sale, including principal pay downs	11,891,251	12,219,990
Proceeds from sale of investment securities available for sale		11,608,699
Purchase of investment securities available for sale	(1,985,000)	(1,208,990)
Purchase (redemption) of Federal Home Loan Bank stock	446,200	(1,083,700)
Loans made, net of principal repayments	20,672,174	778,762
Purchase of loan portfolios		(51,049,819)
Purchase of premises and equipment	(63,665)	(443,450)
Proceeds from sale of premises and equipment		769,914
Proceeds from sale of foreclosed real estate	145,820	35,896
Net cash provided (used) by investing activities	31,106,780	(28,372,698)
Cash flows from financing activities
Net increase (decrease) in Deposits	(20,761,542)	(19,836,138)
Advances by borrowers for taxes and insurance	(902,988)	(760,104)
Proceeds from borrowings	24,000,000	40,000,000
Payments of borrowings	(33,500,000)	(13,007,050)
Interest rate swap on FHLB borrowings	(93,271)	22,784
Issuance of restricted stock	88
Net cash (used) provided by financing activities	(31,257,713)	6,419,492
Net increase (decrease) in cash and cash equivalents	3,179,425	(19,267,083)
Cash and cash equivalents at beginning of period	23,368,415	29,353,921
Cash and cash equivalents at end of period	26,547,840	10,086,838
Reconciliation of net income (loss) to net cash provided by operating activities
Net income (loss)	1,419,288	(1,124,060)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Amortization of premiums on certificates of deposit	68	68
Amortization of premiums on securities	425,126	668,133
Loss on sale of investment securities		2,356
Loss on sale of foreclosed real estate	4,232	1,299
Gain on loans held for sale	(34,482)
Loan discount accretion	3,440	46,841
Deposit premium amortization	(210,491)	(328,646)
Borrowing premium amortization	(122,140)	(352,463)
Core deposit intangible asset amortization	94,548	94,548
Premises and equipment depreciation and amortization	250,243	243,348
Gain on sale of premises and equipment		(212,743)
Stock based compensation	376,722	345,634
Provision for credit losses	382,496	625,000
ESOP shares allocated for release	205,887	196,555
Decrease (increase) in:
Accrued interest receivable	19,801	(203,068)
Loans held for sale	34,482
Cash surrender value of life insurance	(344,070)	(369,991)
Income taxes refundable and deferred income taxes		2,695,446
Other assets	1,055,583	301,007
Increase (decrease) in:
Accrued interest payable	(26,010)	(8,279)
Deferred loan origination fees	(34,690)	(35,711)
Other liabilities	(169,675)	100,849
Net cash provided by operating activities	3,330,358	2,686,123
Noncash investing activity
Real estate acquired through foreclosure	$ 145,820	$ 17,305

Note 1 - Nature of Operations a

Note 1 - Nature of Operations and Summary of Significant Accounting Policies	9 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	Note 1: Nature of Operations and Summary of Significant Accounting Policies Nature of Operations Hamilton Bancorp, Inc. (the “Company”) was incorporated on June 7, 2012 October 10, 2012, 3,703,000 $10.00 $35,580,000, $1,450,000. 8.0% 296,240 October 12, 2012. On December 21, 2017, On October 23, 2018, 1 $4.10 2 0.54 not $2.2 second 2019. On May 13, 2016, October 12, 2015, nineteen twenty-five $19.25 $25.7 On September 11, 2015, April 15, 2015, thirty $30.00 $15.4 Hamilton Bancorp is a holding company that operates a community bank with seven The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial reporting and with instructions for Form 10–Q March 31, 2018 three nine December 31, 2018 not may March 31, 2019, 10 March 31, 2018. Summary of Significant Accounting Policies The accounting and reporting policies of Hamilton Bancorp, Inc. and Subsidiary (“Hamilton”) conform to accounting principles generally accepted in the United States of America (“U.S. GAAP”) and to general practices in the banking industry. The more significant policies follow: Principles of Consolidation Use of Estimates. Investment Securities. may December 31, 2018 March 31, 2018 Investment securities designated as available for sale are stated at estimated fair value based on quoted market prices. They represent those securities which management may may In estimating other-than-temporary impairment losses, management considers the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of the Bank to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value. Loans Held For Sale . Loans Receivable. Loans are reported at their outstanding unpaid principal balance adjusted for the allowance for loan loss, premiums on loans acquired, and/or any deferred fees or costs on originated loans. Interest revenue is accrued on the unpaid principal balance. Loan origination fees and the direct costs of underwriting and closing loans are recognized over the life of the related loan as an adjustment to yield using a method that approximates the interest method. Any differences that arise from prepayment will result in a recalculation of the effective yield. Loans are generally placed on nonaccrual status when they are 90 not Loans are considered impaired when, based on current information, management considers it unlikely that collection of principal and interest payments will be made according to contractual terms. If collection of principal is evaluated as doubtful, all payments are applied to principal. Impaired loans are measured: (i) at the present value of expected cash flows discounted at the loan’s effective interest rate; (ii) at the observable market price; or (iii) at the fair value of the collateral if the loan is collateral dependent. If the measure of the impaired loan is less than the recorded investment in the loan, an impairment is recognized through an allocation of the allowance for loan losses and corresponding provision for loan losses. Generally, identified impairments are charged-off against the allowance for loan losses. Troubled debt restructurings are loans for which Hamilton, for legal or economic reasons related to a debtor’s financial difficulties, has granted a concession to the debtor that it otherwise would not ● Reduction of the stated interest rate; ● Extension of the maturity date or dates at a stated interest rate lower than the current market rate for new debt with similar risk; ● Reduction of the face amount or maturity amount of the debt as stated in the instrument or other agreement; or ● Reduction of accrued interest. Allowance for Loan Losses. The allowance for loan losses is increased by provisions charged to income and reduced by charge-offs, net of recoveries. Management’s periodic evaluation of the adequacy of the allowance is based on the Bank’s past loan loss experience, known and inherent risks in the loan portfolio, adverse situations that may 48 September 30, 2018, 36 48 two 48 48 may not September 30, 2018 $294,000 Management considers a number of factors in estimating the required level of the allowance. These factors include: historical loss experience in the loan portfolios; the levels and trends in past-due and nonaccrual loans; the status of nonaccrual loans and other loans identified as having the potential for further deterioration; credit risk and industry concentrations; trends in loan volume; the effects of any changes in lending policies and procedures or underwriting standards; and a continuing evaluation of the economic environment. As part of the estimation process, management keeps the net charge-off history as a percentage of loans, as it pertains to each loan segment, constant across all risk ratings and alters the qualitative factors either up or down based upon the respective risk rating for each loan segment. Foreclosed Real Estate. Goodwill and Other Intangible Assets. may eight not Derivative Financial Instruments and Hedging Activities . For derivatives qualifying as cash flow hedges, the Company also documents its assessment, both at hedge inception and on an ongoing basis, of whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in fair values or cash flows of hedged items. The effective portion of changes in fair value of derivatives that are designated and qualify as cash flow hedges is recognized in the consolidated statement of comprehensive income (loss). The gain or loss relating to the ineffective portion is recognized immediately in the consolidated statement of operations as a gain or loss. When a hedging instrument expires or is sold, or when a hedge no no For derivative instruments designated as fair-value hedges, the change in fair value of the derivative is recognized in the consolidated statement of operations under the same heading as the change in fair value of the hedged item for the portion attributable to the hedged risk. For accounting purposes, if the derivative is highly effective, the change in fair values relating to the asset or liability and the hedged item will offset one no Gains (losses) on derivatives representing either hedge components excluded from the assessment of effectiveness or hedge ineffectiveness are recognized in earnings. Revenue from Contracts with Customers . 606, 606” 606, not not 606. not 606 Stock Based Compensation. Income Taxes. not not Earnings Per Common Share.

Note 2 - New Accounting Pronoun

Note 2 - New Accounting Pronouncements	9 Months Ended
Note 2 - New Accounting Pronouncements	Dec. 31, 2018
Notes to Financial Statements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Note 2: New Accounting Pronouncements Recent Accounting Pronouncements ASU No. 2017 12, 1 2 December 15, 2018; not 2017 12 ASU No. 2017 08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310 20 not December 15, 2018. not ASU No. 2017 04, 2 not December 15, 2019. January 1, 2017. not 2017 04 ASU No. 2017 01, 805 not December 15, 2017, April 1, 2018 not ASU No. 2016 15, 230 may 1 2 may December 15, 2017, April 1, 2018, not not ASU 2016 13, December 15, 2019, not ASU 2016 02, Leases (Topic 842 12 first December 15, 2018. In July 2018, 2016 02 842 ASU No. 2018 10 842, 2016 02 2016 02. sixteen 2016 02 2018 10 ASU No. 2018 11, (Topic 842 – Targeted Improvement s . 2016 02 2016 02 not 1 2 2016 02 ASU No. 2016 01, Financial Instruments – Recognition and Measurement of Financial Assets and Liabilities . third December 15, 2017, April 1, 2018. no December 31, 2018 not first 2019, not ASU 2014 09, 606 2014 09 2014 09 The guidance in this ASU affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets. This ASU does not not not December 15, 2017, April 1, 2018 not

Note 3 - Earnings Per Share

Note 3 - Earnings Per Share	9 Months Ended
Note 3 - Earnings Per Share	Dec. 31, 2018
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 3 : Earnings per Share Basic earnings per share is computed by dividing income available to common shareholders by the weighted average number of common shares outstanding for the period. Weighted average shares exclude unallocated ESOP shares. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the entity. Both the basic and diluted earnings per share for the three nine December 31, 2018 2017 Three Months Ended Three Months Ended Nine Months Ended Nine Months Ended December 31, 2018 December 31, 2017 December 31, 2018 December 31, 2017 Net income $ (124,683 ) $ (1,927,190 ) $ 1,419,288 $ (1,124,060 ) Weighted average common shares outstanding - basic 3,209,207 3,189,056 3,209,100 3,188,949 Weighted average common shares outstanding - diluted 3,209,207 3,189,056 3,209,895 3,188,949 Income per common share - basic and diluted $ (0.04 ) $ (0.60 ) $ 0.44 $ (0.35 ) Anti-dilutive shares 184,060 118,525 183,265 118,525

Note 4 - Investment Securities

Note 4 - Investment Securities Available for Sale	9 Months Ended
Note 4 - Investment Securities Available for Sale	Dec. 31, 2018
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 4: The amortized cost and fair value of securities at December 31, 2018 March 31, 2018, Gross Gross Amortized unrealized unrealized Fair December 31, 2018 cost gains losses value U.S. government agencies $ 744,186 $ - $ 16,850 $ 727,336 Municipal bonds 12,347,163 - 705,934 11,641,229 Corporate bonds 2,000,000 - 99,496 1,900,504 Mortgage-backed securities 52,844,355 11,438 1,547,007 51,308,786 $ 67,935,704 $ 11,438 $ 2,369,287 $ 65,577,855 Gross Gross Amortized unrealized unrealized Fair March 31, 2018 cost gains losses value U.S. government agencies $ 2,753,346 $ - $ 34,697 $ 2,718,649 Municipal bonds 12,435,068 - 729,077 11,705,991 Corporate bonds 2,000,000 - 45,924 1,954,076 Mortgage-backed securities 61,078,665 12,993 2,066,238 59,025,420 $ 78,267,079 $ 12,993 $ 2,875,936 $ 75,404,136 There were no three nine December 31, 2018. $7,364,939 $11,608,699 three nine December 31, 2017, $33,747 $57,099 $46,483 $59,455, As of December 31, 2018, March 31, 2018, one May 2016 $37,687 $38,032 December 31, 2018. As of December 31, 2018, March 31, 2018, one $744,186 $727,336 $723,023, The amortized cost and estimated fair value of debt securities by contractual maturity at December 31, 2018 March 31, 2018 may may Available for Sale December 31, 2018 March 31, 2018 Amortized Fair Amortized Fair cost value cost value Maturing Within one year $ - $ - $ 2,009,160 $ 1,995,625 Over one to five years 1,227,258 1,197,309 1,231,928 1,196,368 Over five to ten years 4,665,976 4,447,904 3,578,827 3,500,641 Over ten years 9,198,115 8,623,856 10,368,499 9,686,082 Mortgage-backed securities, in monthly installments 52,844,355 51,308,786 61,078,665 59,025,420 $ 67,935,704 $ 65,577,855 $ 78,267,079 $ 75,404,136 The following table presents the Company's investments' gross unrealized losses and the corresponding fair values by investment category and length of time that the securities have been in a continuous unrealized loss position at December 31, 2018 March 31, 2018. Less than 12 months 12 months or longer Total Gross unrealized Fair Gross unrealized Fair Gross unrealized Fair December 31, 2018 losses value losses value losses value U.S. government agencies $ - $ - $ 16,850 $ 727,336 $ 16,850 $ 727,336 Municipal bonds - - 705,934 11,641,229 705,934 11,641,229 Corporate bonds - - 99,496 1,900,504 99,496 1,900,504 Mortgage-backed securities 56,462 1,801,231 1,490,545 46,787,724 1,547,007 48,588,955 $ 56,462 $ 1,801,231 $ 2,312,825 $ 61,056,793 $ 2,369,287 $ 62,858,024 Less than 12 months 12 months or longer Total Gross unrealized Fair Gross unrealized Fair Gross unrealized Fair March 31, 2018 losses value losses value losses value U.S. government agencies $ 21,163 $ 723,023 $ 13,534 $ 1,995,625 $ 34,697 $ 2,718,648 Municipal bonds - - 729,077 11,705,991 729,077 11,705,991 Corporate bonds - - 45,924 1,954,076 45,924 1,954,076 Mortgage-backed securities 383,987 15,880,948 1,682,251 40,684,836 2,066,238 56,565,784 $ 405,150 $ 16,603,971 $ 2,470,786 $ 56,340,528 $ 2,875,936 $ 72,944,499 The unrealized losses that exist are a result of market changes in interest rates since the original purchase. Management systematically evaluates investment securities for other-than-temporary declines in fair value on an annual basis from the date of purchase if the respective security is in a loss position. This analysis requires management to consider various factors, which include ( 1 2 3 An impairment loss is recognized in earnings if any of the following are true: ( 1 2 not 3 not not

Note 5 - Loans Receivable and A

Note 5 - Loans Receivable and Allowance for Loan Losses	9 Months Ended
Note 5 - Loans Receivable and Allowance for Loan Losses	Dec. 31, 2018
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Note 5: Loans Receivable and Allowance for Loan Losses Loans receivable, excluding loans held for sale, consist of the following at December 31, 2018 March 31, 2018: December 31, 2018 March 31, 2018 Legacy (1) Acquired Total Loans % of Total Legacy (1) Acquired Total Loans % of Total Real estate loans: One-to four-family: Residential (2) $ 83,117,881 $ 66,255,260 149,373,141 40 % $ 85,248,184 $ 72,749,066 $ 157,997,250 41 % Residential construction 3,430,203 - 3,430,203 1 % 5,450,827 - 5,450,827 1 % Investor (3) 7,337,281 16,407,266 23,744,547 6 % 9,275,031 17,460,809 26,735,840 7 % Commercial 105,755,786 9,289,784 115,045,570 31 % 100,403,769 11,762,485 112,166,254 29 % Commercial construction 1,543,313 1,059,217 2,602,530 1 % 5,763,784 1,352,019 7,115,803 2 % Total real estate loans 201,184,464 93,011,527 294,195,991 80 % 206,141,595 103,324,379 309,465,974 80 % Commercial business (4) 35,276,493 1,706,509 36,983,002 10 % 38,302,739 1,841,226 40,143,965 10 % Home equity loans 15,077,068 4,941,051 20,018,119 5 % 13,956,327 6,039,462 19,995,789 5 % Consumer (5) 16,329,237 699,371 17,028,608 5 % 18,849,448 766,063 19,615,511 5 % Total Loans 267,867,262 100,358,458 368,225,720 100 % 277,250,109 111,971,130 389,221,239 100 % Net deferred loan origination fees and costs (178,056 ) - (178,056 ) (212,746 ) - (212,746 ) Loan premium (discount) 1,708,908 (299,956 ) 1,408,952 1,922,428 (510,036 ) 1,412,392 $ 269,398,114 $ 100,058,502 $ 369,456,616 $ 278,959,791 $ 111,461,094 $ 390,420,885 ( 1 As a result of the acquisition of Fraternity Community Bancorp, Inc., the parent company of Fraternity Federal Savings and Loan, in May 2016 September 2015, two ( 2 "Legacy" one four March 31, 2018 $19.2 second 2018. ( 3 "Investor" loans are residential mortgage loans secured by non-owner occupied one four ( 4 "Legacy" commercial business loans at March 31, 2018 $15.5 June 2017 $3.2 second 2018. ( 5 "Legacy" consumer loans at March 31, 2018 $19.9 August December 2017. Residential lending is generally considered to involve less risk than other forms of lending, although payment experience on these loans is dependent on economic and market conditions in the Bank's lending area. Construction loan repayments are generally dependent on the related properties or the financial condition of its borrower or guarantor. Accordingly, repayment of such loans can be more susceptible to adverse conditions in the real estate market and the regional economy. A substantial portion of the Bank's loan portfolio is real estate loans secured by residential and commercial real estate properties located in the Baltimore metropolitan area. Loans are extended only after evaluation of a customer's creditworthiness and other relevant factors on a case-by-case basis. The Bank generally does not 75% 95% 80%. Commercial business loans are made to provide funds for equipment and general corporate needs. Repayment of a loan primarily uses the funds obtained from the operation of the borrower’s business. Commercial loans also include lines of credit that are utilized to finance a borrower’s short-term credit needs and/or to finance a percentage of eligible receivables and inventory. The Company’s loan portfolio also includes equipment leases, which consists of leases for essential commercial equipment used by small to medium sized businesses. The home equity loans consist of both conforming loans and revolving lines of credit to consumers which are secured by residential real estate. These loans are typically secured with second may The following table details activity in the allowance for loan losses by portfolio segment for the three nine December 31, 2018 2017. not not Three Months Ended December 31, 2018 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 665,676 $ 314,571 $ 1,312,441 $ 12,390 $ 532,611 $ 72,831 $ 98,676 $ 21,733 $ 3,030,929 Charge-offs - (32,909 ) - - (133,729 ) - - - (166,638 ) Recoveries 41,059 33,609 - - 10,880 - 1,267 - 86,815 Provision for credit losses (24,321 ) (36,632 ) (31,557 ) (4,090 ) 160,895 1,555 (4,214 ) 18,364 80,000 Ending balance $ 682,414 $ 278,639 $ 1,280,884 $ 8,300 $ 570,657 $ 74,386 $ 95,729 $ 40,097 $ 3,031,106 Nine Months Ended December 31, 2018 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 608,723 $ 51,690 $ 1,253,383 $ 33,430 $ 673,982 $ 69,459 $ 131,236 $ - $ 2,821,903 Charge-offs (13,769 ) (41,022 ) (31,320 ) - (208,729 ) - (2,465 ) - (297,305 ) Recoveries 43,301 33,675 31,320 - 10,880 - 4,836 - 124,012 Provision for credit losses 44,159 234,296 27,501 (25,130 ) 94,524 4,927 (37,878 ) 40,097 382,496 Ending balance $ 682,414 $ 278,639 $ 1,280,884 $ 8,300 $ 570,657 $ 74,386 $ 95,729 $ 40,097 $ 3,031,106 Allowance allocated to: Legacy Loans: Individually evaluated for impairment $ 253,811 $ - $ - $ - $ - $ - $ - $ - $ 253,811 Collectively evaluated for impairment 276,937 50,593 1,241,051 7,254 566,217 59,952 95,516 40,097 2,337,617 Acquired Loans: Individually evaluated for impairment $ - $ - $ - $ - $ - $ - $ - $ - $ - Collectively evaluated for impairment 151,666 228,046 39,833 1,046 4,440 14,434 213 - 439,678 Three Months Ended December 31, 2017 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 528,288 $ 52,255 $ 1,360,433 $ 12,074 $ 327,130 $ 62,570 $ 128,241 $ - $ 2,470,991 Charge-offs - (111,360 ) (100,236 ) - - - - - (211,596 ) Recoveries 3,937 - - - 171 - 1,034 - 5,142 Provision for credit losses 35,875 103,790 148,707 11,100 45,987 619 (1,078 ) - 345,000 Ending balance $ 568,100 $ 44,685 $ 1,408,904 $ 23,174 $ 373,288 $ 63,189 $ 128,197 $ - $ 2,609,537 Nine Months Ended December 31, 2017 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 553,539 $ 35,275 $ 1,375,894 $ 9,031 $ 149,461 $ 70,071 $ 1,544 $ - $ 2,194,815 Charge-offs (8,907 ) (126,482 ) (100,236 ) - - - (486 ) - (236,111 ) Recoveries 3,937 18,129 - - 551 - 3,216 - 25,833 Provision for credit losses 19,531 117,763 133,246 14,143 223,276 (6,882 ) 123,923 - 625,000 Ending balance $ 568,100 $ 44,685 $ 1,408,904 $ 23,174 $ 373,288 $ 63,189 $ 128,197 $ - $ 2,609,537 Allowance allocated to: Legacy Loans: Individually evaluated for impairment $ 272,707 $ - $ - $ - $ - $ - $ - $ - $ 272,707 Collectively evaluated for impairment 295,393 44,685 1,408,904 23,174 373,288 63,189 128,197 - 2,336,830 Acquired Loans: Individually evaluated for impairment $ - $ - $ - $ - $ - $ - $ - $ - $ - Collectively evaluated for impairment - - - - - - - - - Our recorded investment in loans at December 31, 2018 2017 December 31, 2018 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Total Legacy Loans: Individually evaluated for impairment $ 1,773,176 $ 31,752 $ 4,139,177 $ - $ 743,160 $ 6,785 $ 91,662 $ 6,785,712 Collectively evaluated for impairment 84,774,908 7,305,529 101,616,609 1,543,313 34,533,333 15,070,283 16,237,575 261,081,550 Ending balance $ 86,548,084 $ 7,337,281 $ 105,755,786 $ 1,543,313 $ 35,276,493 $ 15,077,068 $ 16,329,237 $ 267,867,262 Acquired Loans: Individually evaluated for impairment $ 440,242 $ 261,659 $ - $ - $ - $ 164 $ 55,492 $ 757,557 Collectively evaluated for impairment 65,815,018 16,145,606 9,289,784 1,059,217 1,706,509 4,940,887 643,880 99,600,901 Ending balance $ 66,255,260 $ 16,407,265 $ 9,289,784 $ 1,059,217 $ 1,706,509 $ 4,941,051 $ 699,372 $ 100,358,458 December 31, 2017 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Total Legacy Loans: Individually evaluated for impairment $ 1,697,585 $ 121,514 $ 4,500,043 $ - $ 905,178 $ 21,579 $ - $ 7,245,899 Collectively evaluated for impairment 85,532,435 7,254,483 96,357,409 3,995,441 38,083,051 13,780,512 20,075,548 265,078,879 Ending balance $ 87,230,020 $ 7,375,997 $ 100,857,452 $ 3,995,441 $ 38,988,229 $ 13,802,091 $ 20,075,548 $ 272,324,778 Acquired Loans: Individually evaluated for impairment $ 1,061,049 $ 579,172 $ 199,920 $ - $ - $ - $ 56,708 $ 1,896,849 Collectively evaluated for impairment 73,640,662 17,629,734 11,960,924 856,970 1,928,232 6,874,136 728,392 113,619,050 Ending balance $ 74,701,711 $ 18,208,906 $ 12,160,844 $ 856,970 $ 1,928,232 $ 6,874,136 $ 785,100 $ 115,515,899 Past due loans, segregated by age and class of loans, as of and for the nine December 31, 2018 March 31, 2018, December 31, 2018 March 31, 2018 Legacy Acquired Total Legacy Acquired Total Current $ 262,125,497 $ 99,620,976 $ 361,746,473 $ 270,807,643 $ 109,972,473 $ 380,780,116 Accruing past due loans: 30-59 days past due: Real estate loans: Residential 71,020 18,488 89,508 63,618 689,364 752,982 Investor - 29,357 29,357 - - - Commercial - - - - - - Commercial construction - - - - - - Commercial business 120,418 - 120,418 135,502 - 135,502 Home equity loans - 68 68 - - - Consumer 23,357 25,753 49,110 148,876 - 148,876 Total 30-59 days past due 214,795 73,666 288,461 347,996 689,364 1,037,360 60-89 days past due: Real estate loans: Residential 72,377 121,223 193,600 70,291 - 70,291 Investor - - - - - - Commercial - - - - - - Commercial construction - - - - - - Commercial business 460,762 - 460,762 134,524 - 134,524 Home equity loans - - - - - - Consumer 5,233 - 5,233 28,300 - 28,300 Total 60-89 days past due 538,372 121,223 659,595 233,115 - 233,115 90 or more days past due: Real estate loans: Residential - - - - - - Investor 222,485 113,029 335,514 734,818 471,423 1,206,241 Commercial - - - - - - Commercial construction - - - - - - Commercial business - - - - - - Home equity loans - - - - - - Consumer - - - - - - Total 90 or more days past due 222,485 113,029 335,514 734,818 471,423 1,206,241 Total accruing past due loans 975,652 307,918 1,283,570 1,315,929 1,160,787 2,476,716 Non-accruing loans: Real estate loans: Residential 365,610 300,530 666,140 526,584 338,060 864,644 Investor 31,752 128,937 160,689 60,949 300,872 361,821 Commercial 4,139,177 - 4,139,177 4,356,264 198,938 4,555,202 Commercial construction - - - - - - Commercial business 143,145 - 143,145 165,285 - 165,285 Home equity loans - 97 97 12,605 - 12,605 Consumer 86,429 - 86,429 4,850 - 4,850 Non-accruing loans: 4,766,113 429,564 5,195,677 5,126,537 837,870 5,964,407 Total Loans $ 267,867,262 $ 100,358,458 $ 368,225,720 $ 277,250,109 $ 111,971,130 $ 389,221,239 Nonaccrual interest not accrued: Real estate loans: Residential $ 2,289 $ 7,237 $ 9,526 $ 8,250 $ 53,120 $ 61,370 Investor 2,066 6,490 8,556 8,513 15,604 24,117 Commercial 252,381 - 252,381 294,619 - 294,619 Commercial construction - - - - - - Commercial business 8,796 - 8,796 12,891 - 12,891 Home equity loans - - - 436 - 436 Consumer 1,459 - 1,459 385 - 385 Total nonaccrual interest not accrued $ 266,991 $ 13,727 $ 280,718 $ 325,094 $ 68,724 $ 393,818 Impaired loans as of and for the three nine December 31, 2018 2017, March 31, 2018, Impaired Loans at December 31, 2018 Three months ended December 31, 2018 Nine months ended December 31, 2018 Unpaid Contractual Average Interest Average Interest Principal Recorded Related Recorded Income Recorded Income Balance Investment Allowance Investment Recognized Investment Recognized Legacy: With no related allowance recorded: Real estate loans: Residential $ 706,098 $ 538,723 $ - $ 558,414 $ 3,719 $ 538,965 $ 7,666 Investor - - - - - - - Commercial 6,375,413 4,139,177 - 4,309,168 - 4,280,325 53,278 Commercial construction Commercial business 1,369,695 743,160 - 863,260 25,781 925,694 70,558 Home equity loans 33,287 6,785 - 7,036 1,910 7,293 2,043 Consumer 91,745 91,662 - 92,474 2,542 92,822 2,542 With an allowance recorded: Real estate loans: Residential $ 1,248,874 $ 1,234,453 $ 253,811 $ 1,237,197 $ 12,337 $ 1,246,235 $ 37,255 Investor 57,831 31,752 - 32,427 1,108 32,291 1,108 Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total legacy impaired 9,882,943 6,785,712 253,811 7,099,976 47,397 7,123,625 174,450 Acquired (1): With no related allowance recorded: Real estate loans: Residential 456,272 440,242 - 439,495 5,457 425,256 7,179 Investor 405,538 261,659 - 263,562 4,722 246,751 13,859 Commercial Commercial construction Commercial business Home equity loans 37,858 164 - 238 1,851 79 2,501 Consumer 88,545 55,492 - 56,249 1,401 57,957 3,949 With an allowance recorded: Real estate loans: Residential - - - - - - - Investor - - - - - - - Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total acquired impaired 988,213 757,557 - 759,544 13,431 730,043 27,488 Total impaired $ 10,871,156 $ 7,543,269 $ 253,811 $ 7,859,520 $ 60,828 $ 7,853,668 $ 201,938 ( 1 Generally accepted accounting principles require that we record acquired loans at fair value at acquisition, which includes a discount for loans with credit impairment. These purchased credit impaired loans are not not Impaired Loans at December 31, 2017 Three months ended December 31, 2017 Nine months ended December 31, 2017 Unpaid Contractual Average Interest Average Interest Principal Recorded Related Recorded Income Recorded Income Balance Investment Allowance Investment Recognized Investment Recognized Legacy: With no related allowance recorded: Real estate loans: Residential $ 513,736 $ 371,312 $ - $ 376,225 $ 280 $ 387,772 $ 1,451 Investor 127,420 121,514 122,576 - 123,362 3,772 Commercial 6,487,088 4,500,043 - 4,689,502 - 4,703,598 1,077 Commercial construction - - - - - - - Commercial business 1,303,000 905,178 - 937,594 24,038 894,330 75,926 Home equity loans 48,218 21,579 - 22,072 76 23,100 316 Consumer - - - - - - - With an allowance recorded: Real estate loans: Residential 1,354,169 1,326,273 272,707 1,330,015 13,248 1,341,584 39,333 Investor - - - - - - - Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total legacy impaired 9,833,631 7,245,899 272,707 7,477,984 37,642 7,473,746 121,875 Acquired (1): With no related allowance recorded: Real estate loans: Residential 1,211,254 1,061,049 - 1,063,445 4,247 1,077,738 26,087 Investor 687,849 579,172 - 663,538 2,893 697,174 34,582 Commercial 249,920 199,920 - 200,589 1,888 202,263 5,700 Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans 42,583 - - - - - 600 Consumer 99,349 56,708 - 58,084 1,338 62,234 4,464 With an allowance recorded: Real estate loans: Residential - - - - - - - Investor - - - - - - - Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total acquired impaired 2,290,955 1,896,849 - 1,985,656 10,366 2,039,409 71,433 Total impaired $ 12,124,586 $ 9,142,748 $ 272,707 $ 9,463,640 $ 48,008 $ 9,513,155 $ 193,308 ( 1 Generally accepted accounting principles require that we record acquired loans at fair value at acquisition, which includes a discount for loans with credit impairment. These purchased credit impaired loans are not not Impaired Loans at March 31, 2018 For the Year Ended March 31, 2018 Unpaid Contractual Average Interest Principal Recorded Related Recorded Income Balance Investment Allowance Investment Recognized Legacy: With no related allowance recorded: Real estate loans: Residential $ 665,051 $ 517,600 $ - $ 548,636 $ 9,257 Investor 126,389 60,949 118,175 3,772 Commercial 6,487,088 4,356,264 - 4,634,504 1,077 Commercial construction - - - - - Commercial business 1,562,756 795,410 - 1,082,773 103,474 Home equity loans 47,650 20,595 - 22,604 392 Consumer 48,115 34,266 - 38,514 1,576 With an allowance recorded: Real estate loans: Residential 1,336,078 1,309,440 266,256 1,328,919 51,928 Investor - - - - - Commercial - - - - - Commercial construction - - - - - Commercial business - - - - - Home equity loans - - - - - Consumer - - - - - Total legacy impaired 10,273,127 7,094,524 266,256 7,774,125 171,476 Acquired (1): With no related allowance recorded: Real estate loans: Residential 1,082,484 922,252 - 945,602 26,437 Investor 682,045 444,254 - 659,246 37,368 Commercial 248,938 198,938 - 201,519 7,336 Commercial construction - - - - - Commercial business - - - - - Home equity loans 40,473 - - - 1,329 Consumer 95,986 60,371 - 64,013 6,062 With an allowance recorded: Real estate loans: Residential - - - - - Investor - - - - - Commercial - - - - - Commercial construction - - - - - Commercial business - - - - - Home equity loans - - - - - Consumer - - - - - Total acquired impaired 2,149,926 1,625,815 - 1,870,380 78,532 Total impaired $ 12,423,053 $ 8,720,339 $ 266,256 $ 9,644,505 $ 250,008 ( 1 Generally accepted accounting principles require that we record acquired loans at fair value at acquisition, which includes a discount for loans with credit impairment. These purchased credit impaired loans are not not The following table documents changes in the carrying amount of acquired impaired loans (Purchased Credit Impaired or “PCI”) for the nine December 31, 2018 2017, December 31, 2018 December 31, 2017 Recorded investment at beginning of period $ 1,021,424 $ 1,341,935 Accretion 2,505 25,964 Reductions for payments (649,168 ) (324,806 ) Recorded investment at end of period $ 374,761 $ 1,043,093 Oustanding principal balance at end of period $ 470,368 $ 1,297,471 A summary of changes in the accretable yield for PCI loans for the nine December 31, 2018 2017 December 31, 2018 December 31, 2017 Accretable yield, beginning of period $ 31,895 $ 59,639 Accretion (2,505 ) (25,964 ) Reclassification from nonaccretable difference - - Accretable yield, end of period $ 29,390 $ 33,675 Impaired loans also include certain loans that have been modified in troubled debt restructurings (TDRs) where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Bank's loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Generally, nonaccrual loans that are modified and considered TDRs are classified as nonperforming at the time of restructure and may six A summary of TDRs at December 31, 2018 March 31, 2018 Number of December 31, 2018 contracts Performing Nonperforming Total Real estate loans: Residential 16 $ 1,295,469 $ 226,119 $ 1,521,588 Investor - - - - Commercial 2 - 1,195,421 1,195,421 Commercial construction - - - - Commercial business 1 600,016 - 600,016 Home equity loans - - - - Consumer - - - - 19 $ 1,895,485 $ 1,421,540 $ 3,317,025 Number of March 31, 2018 contracts Performing Nonperforming Total Real estate loans: Residential 15 $ 1,230,166 $ 312,964 $ 1,543,130 Investor - - - - Commercial 2 - 1,195,421 1,195,421 Commercial construction - - - - Commercial business 1 605,488 - 605,488 Home equity loans - - - - Consumer - - - - 18 $ 1,835,654 $ 1,508,385 $ 3,344,039 The following table presents the number of contracts and the dollar amount of TDRs that were added during the three nine December 31, 2018 2017. no three December 31, 2018. no December 31, 2018. Loans Modified as a TDR for the Three Months Ended December 31, 2018 December 31, 2017 Number of Outstanding recorded Number of Outstanding recorded Troubled Debt Restructurings contracts investment contracts investment Real estate loans: Residential - $ - 2 $ 50,432 Loans Modified as a TDR for the nine months ended December 31, 2018 December 31, 2017 Number of Outstanding recorded Number of Outstanding recorded Troubled Debt Restructurings contracts investment contracts investment Real estate loans: One-to four-family 1 $ 20,565 3 $ 52,363 There were no three nine December 31, 2018 2017. 90 In calculating the allowance for loan losses, individual TDRs are evaluated for impairment. TDRs are evaluated for impairment based upon either the present value of cash flows or, if collateral dependent, the lower of cost or fair value of the underlying collateral. If it is determined that the cash flows or underlying collateral is less than the carrying amount of the loan, the difference in value will be charged-off through earnings, unless the TDR is performing, in which case a specific reserve may Credit quality indicators As part of the ongoing monitoring of the credit quality of the Bank's loan portfolio, management tracks certain credit quality indicators including trends related to the risk grade of loans, the level of classified loans, net charge offs, nonperforming loans, and the general economic conditions in the Bank's market. The Bank utilizes a risk grading matrix to assign a risk grade to each of its loans. A description of the general characteristics of loans characterized as watch list or classified is as follows: Pass A pass loan is considered of sufficient quality to preclude a special mention or an adverse rating. Pass assets generally are well protected by the current net worth and paying capacity of the obligor or by the value of the asset or underlying collateral. Special Mention A special mention loan has potential weaknesses that deserve management's close attention. If left uncorrected, these potential weaknesses may not not Loans that would primarily fall into this notational category could have been previously classified adversely, but the deficiencies have since been corrected. Management should closely monitor recent payment history of the loan and value of the collateral. Borrowers may may may Substandard A substandard loan is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Substandard loans have a well-defined weakness, or weaknesses, that jeopardize the collection or liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not Borrowers may Doubtful A doubtful loan has all the weaknesses inherent as a substandard loan with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. A loan classified as doubtful exhibits loss potential. However, there is still sufficient reason to permit the loan to remain on the books. A doubtful classification could reflect the deterioration of the primary source of repayment and serious doubt exists as to the quality of the secondary source of repayment. Doubtful classifications should be used only when a distinct and known possibility of loss exists. When identified, adequate loss should be recorded for the specific assets. The entire asset should not Loss Loans classified as loss are considered uncollectable and of such little value that their continuance as loans is unjustified. A loss classification does not no may The following tables present the December 31, 2018 March 31, 2018, no December 31, 2018 March 31, 2018. December 31, 2018 March 31, 2018 LEGACY ACQUIRED TOTAL LEGACY ACQUIRED TOTAL Risk Rating: Rating - Pass: Real estate loans: Residential $ 83,743,323 $ 64,856,380 $ 148,599,703 $ 87,863,805 $ 70,901,293 $ 158,765,098 Investor 7,305,529 15,873,106 23,178,635 9,214,082 16,719,346 25,933,428 Commercial 101,616,609 9,289,784 110,906,393 92,955,370 11,563,547 104,518,917 Commercial construction 1,543,313 1,059,217 2,602,530 5,763,784 1,352,019 7,115,803 Commercial Business 34,835,870 1,706,509 36,542,379 37,978,293 1,841,226 39,819,519 Home Equity 15,070,123 4,805,766 19,875,889 13,935,732 5,928,787 19,864,519 Consumer 16,227,625 669,618 16,897,243 18,733,489 733,669 19,467,158 Total Pass 260,342,392 98,260,380 358,602,772 266,444,555 109,039,887 375,484,442 Rating - Special Mention: Real estate loans: Residential 2,327,412 958,638 3,286,050 2,365,652 925,521 3,291,173 Investor - 273,806 273,806 - 297,209 297,209 Commercial - - - 3,092,135 - 3,092,135 Commercial construction - - - - - - Commercial Business 297,478 - 297,478 134,524 - 134,524 Home Equity - 135,121 135,121 - 110,675 110,675 Consumer 9,950 - 9,950 96,474 - 96,474 Total Special Mention 2,634,840 1,367,565 4,002,405 5,688,785 1,333,405 7,022,190 Rating - Substandard: Real estate loans: Residential 477,349 440,242 917,591 469,554 922,252 1,391,806 Investor 31,752 260,354 292,106 60,949 444,254 505,203 Commercial 4,139,177 - 4,139,177 4,356,264 198,938 4,555,202 Commercial construction - - - - - - Commercial Business 143,145 - 143,145 189,922 - 189,922 Home Equity 6,945 164 7,109 20,595 - 20,595 Consumer 91,662 29,753 121,415 19,485 32,394 51,879 Total - Substandard 4,890,030 730,513 5,620,543 5,116,769 1,597,838 6,714,607 Rating - Doubtful - - - - - - Rating - Loss - - - - - - TOTAL LOANS $ 267,867,262 $ 100,358,458 $ 368,225,720 $ 277,250,109 $ 111,971,130 $ 389,221,239 In the normal course of business, the Bank has various outstanding commitments and contingent liabilities that are not no may not The Bank’s maximum exposure to credit loss in the event of nonperformance by the customer is the contractual amount of the credit commitment. Loan commitments, lines of credit, and letters of credit are made on the same terms, including collateral, as outstanding loans. The Bank has established an off-balance sheet reserve for potential losses associated with any outstanding commitment or unused line of credit. The off-balance sheet reserve is a percentage of the outstanding commitment or unused line of credit that is based upon a discounted charge-off history associated with each respective loan segment. The reserve at December 31, 2018 March 31, 2018 $57,000 $50,000, December 31, 2018, not The Bank had the following outstanding commitments and unused lines of credit as of December 31, 2018 March 31, 2018: December 31, March 31, Outstanding Commitment and Used Lines of Credit 2018 2018 Unused commercial lines of credit $ 13,004,510 $ 9,187,810 Unused home equity lines of credit 23,263,860 22,560,376 Unused consumer lines of credit 26,770 29,331 Residential construction loan commitments 6,934,369 4,234,076 Commercial construction loan commitments 2,678,900 8,968,416 Home equity loan commitments 200,000 389,600 Commercial loan commitments 3,671,000 5,125,000 Standby letter of credit 766,783 250,224

Note 6 - Goodwill and Other Int

Note 6 - Goodwill and Other Intangible Asset	9 Months Ended
Note 6 - Goodwill and Other Intangible Asset	Dec. 31, 2018
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	Note 6: Goodwill and Other Intangible Asset The Company’s intangible assets (goodwill and core deposit intangible) at December 31, 2018 December 2009 September 2015 May 2016, $2.7 fourth 2018 December 31, 2017. fourth 2018, March 31, 2018. no 2018 eight The following table presents the changes in the net book value of intangible assets for the nine December 31, 2018 2017: Core deposit Goodwill intangible Balance April 1, 2017 $ 8,563,530 $ 739,298 Amortization - (94,548 ) Balance December 31, 2017 8,563,530 644,750 Core deposit Goodwill intangible Balance April 1, 2018 $ 8,563,530 $ 613,234 Amortization - (94,549 ) Balance December 31, 2018 $ 8,563,530 $ 518,685 At December 31, 2018, Year ending March 31, Amount 2019 31,519 2020 123,737 2021 98,070 2022 98,070 2023 98,070 2024 64,177 2025 5,042 $ 518,685

Note 7 - Derivative - Interest

Note 7 - Derivative - Interest Rate Swap Agreement	9 Months Ended
Note 7 - Derivative - Interest Rate Swap Agreement	Dec. 31, 2018
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Note 7: Derivative – Interest Rate Swap Agreement The Company utilizes interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. The notional amount of the interest rate swaps does not $762,000 $751,000 December 31, 2018 March 31, 2018, Interest Rate SWAPS Designated as Cash Flow Hedges During fiscal 2017, $11.6 December 31, 2018 September 30, 2017. $1,996 $1,075 three nine December 31, 2018, $5,445 $9,124 three nine December 31, 2017. Summary information about the interest rate swaps designated as cash flow hedges is as follows: Notional Effective Pay Fixed Receive Interest Rate Swap Amount Start Date Maturity Date Rate Floating Rate FHLB Advance Swap 1 $ 1,850,000 March 9, 2017 March 9, 2022 2.24 % 3-Month LIBOR FHLB Advance Swap 2 1,850,000 March 9, 2017 March 9, 2024 2.41 % 3-Month LIBOR FHLB Advance Swap 3 1,850,000 March 9, 2017 March 9, 2027 2.57 % 3-Month LIBOR FHLB Advance Swap 4 2,000,000 March 29, 2017 March 29, 2022 2.08 % 3-Month LIBOR FHLB Advance Swap 5 2,000,000 March 29, 2017 March 29, 2024 2.24 % 3-Month LIBOR FHLB Advance Swap 6 2,000,000 March 29, 2017 March 29, 2027 2.40 % 3-Month LIBOR Total Notional Amount $ 11,550,000 Interest revenue/(expense) recorded on the swap transactions totaled $( 60 $1,892 three nine December 31, 2018 The following table reflects cash flow hedges included in the Consolidated Statements of Financial Condition as of December 31, 2018 March 31, 2018: December 31, 2018 March 31, 2018 Notional Notional Amount Fair Value Amount Fair Value Included in assets: Interest rate swaps related to FHLB Advances $ 11,550,000 $ 123,118 $ 11,550,000 $ 217,464 The following tables present the net gain (loss) recorded in accumulated other comprehensive income (loss) and the Consolidated Statements of Operations relating to the cash flow derivative instruments for the three nine December 31, 2018 2017: Three Month and Period Ended December 31, 2018 Three Month and Period Ended December 31, 2017 Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Interest Rate Contract $ (287,116 ) $ - $ (1,996 ) $ 122,388 $ - $ (5,445 ) Nine Month and Period Ended December 31, 2018 Nine Month and Period Ended December 31, 2017 Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Interest Rate Contract $ (93,271 ) $ - $ (1,075 ) $ 22,784 $ - $ (9,124 ) Interest Rate SWAPS Designated as Fair Value Hedges The derivative position relates to a transaction in which the Bank entered into an interest rate swap with another financial institution using a fixed rate commercial real estate loan as an offset. The Bank agrees to pay the other financial institution a fixed interest rate on a notional amount based upon the commercial real estate loan and in return receive a variable interest rate on the same notional amount. This transaction allows the Bank to effectively convert a fixed rate loan to a variable rate. Because the terms of the swap with the other financial institution and the commercial real estate loan offset each other, with the only difference being credit risk associated with the loan, changes in the fair value of the underlying derivative contract and the commercial real estate loan are not not During the second 2016, $3.3 3.99% 10 $3.0 December 31, 2018. Credit risk arises from the possible inability of counterparties to meet the terms of their contracts. The Bank’s exposure is limited to the replacement value of the contract rather than the notional amount, principal, or contract amount. There are provisions in the agreement with the counterparty that allow for certain unsecured credit exposure up to an agreed threshold. Exposures in excess of the agreed threshold are collateralized. In addition, the Bank minimizes credit risk through credit approvals, limits, and monitoring procedures. The fair value hedge is summarized below: December 31, 2018 March 31, 2018 Notional Amount Principal Amount Fair Value Notional Amount Principal Amount Fair Value Included in Loans and Leases: Commercial real estate loan $ - $ 3,027,702 $ 2,984,595 $ - $ 3,091,892 $ 3,022,744 Included in Other Assets: Interest Rate Swap $ 3,027,702 $ - $ 43,107 $ 3,091,892 - $ 69,148 No three nine December 31, 2018 2017

Note 8 - Deposits

Note 8 - Deposits	9 Months Ended
Note 8 - Deposits	Dec. 31, 2018
Notes to Financial Statements
Deposit Liabilities Disclosures [Text Block]	Note 8: Deposits The following table details the composition of deposits and the related percentage mix of total deposits, respectively: December 31, 2018 March 31, 2018 Amount % of Total Amount % of Total Savings $ 41,548,268 10.8 % $ 42,499,381 10.6 % Noninterest-bearing checking 27,365,942 7.1 % 29,557,943 7.3 % Interest-bearing checking 28,478,231 7.4 % 27,219,286 6.7 % Money market accounts 48,128,831 12.5 % 58,466,228 14.4 % Time deposits 238,448,636 62.1 % 246,988,613 61.0 % $ 383,969,908 100.0 % $ 404,731,451 100.0 % Premium on deposits asssumed 201,034 411,524 Total deposits $ 384,170,942 $ 405,142,975

Note 9 - Lines of Credit and Fe

Note 9 - Lines of Credit and Federal Home Loan Bank Advances	9 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Federal Home Loan Bank Advances, Disclosure [Text Block]	Note 9: The Bank may $5.0 $1.0 no December 31, 2018 March 31, 2018. Borrowings consist of advances from the Federal Home Loan Bank (FHLB). The Bank may 25 December 31, 2018, March 31, 2018, $73.6 $68.3 $114.8 December 31, 2018 $127.1 March 31, 2018. December 31, 2018 March 31, 2018 December 31, 2018 March 31, 2018 Amount Rate Maturity Date Amount Rate Maturity Date FHLB advance (1) $ 5,550,000 2.57 % 3/11/2019 $ 5,550,000 1.84 % 6/11/2018 FHLB advance (2) 6,000,000 2.58 % 3/29/2019 6,000,000 1.90 % 6/29/2018 FHLB advance 3,000,000 2.71 % 8/26/2019 1,000,000 2.60 % 7/2/2018 FHLB advance 3,000,000 1.59 % 8/26/2019 1,000,000 3.05 % 7/3/2018 FHLB advance 1,500,000 1.95 % 11/25/2019 5,000,000 3.94 % 7/23/2018 FHLB advance 3,000,000 2.31 % 2/3/2020 1,000,000 1.74 % 7/31/2018 FHLB advance 1,000,000 2.86 % 8/4/2020 1,000,000 1.40 % 8/21/2018 FHLB advance 2,000,000 2.56 % 8/27/2020 4,000,000 1.94 % 8/27/2018 FHLB advance 1,000,000 2.15 % 11/30/2020 3,000,000 1.41 % 8/27/2018 FHLB advance 2,000,000 2.28 % 12/28/2020 5,000,000 3.38 % 9/19/2018 FHLB advance 2,000,000 2.49 % 2/1/2021 1,000,000 2.60 % 10/2/2018 FHLB advance 3,000,000 2.93 % 7/26/2021 1,000,000 1.95 % 12/31/2018 FHLB advance 2,000,000 3.01 % 8/4/2021 3,000,000 1.38 % 7/31/2019 FHLB advance 1,000,000 2.88 % 8/23/2021 3,000,000 1.96 % 8/26/2019 FHLB advance 3,000,000 1.48 % 8/25/2021 3,000,000 1.59 % 8/26/2019 FHLB advance 2,000,000 2.68 % 8/27/2021 3,000,000 1.42 % 8/26/2019 FHLB advance 3,000,000 2.79 % 8/29/2022 1,500,000 1.95 % 11/25/2019 FHLB advance 2,000,000 3.14 % 9/19/2022 1,500,000 1.78 % 11/27/2019 FHLB advance 3,000,000 2.70 % 8/28/2023 3,000,000 2.31 % 2/3/2020 FHLB advance 2,000,000 3.20 % 9/19/2023 1,000,000 2.15 % 11/30/2020 FHLB advance - - - 2,000,000 2.28 % 12/28/2020 FHLB advance - - - 2,000,000 2.49 % 2/1/2021 FHLB advance - - - 3,000,000 1.48 % 8/25/2021 51,050,000 60,550,000 Premium on FHLB advances assumed - 122,140 Total borrowings $ 51,050,000 $ 60,672,140 ( 1 FHLB Advance is tied to three $1.85 three five seven ten 3 three three March 9, 2022, 2024, 2027. ( 2 FHLB Advance is tied to three $2.0 three five seven ten 3 three three March 29, 2022, 2024, 2027.

Note 10 - Regulatory Capital Ra

Note 10 - Regulatory Capital Ratios	9 Months Ended
Note 10 - Regulatory Capital Ratios	Dec. 31, 2018
Notes to Financial Statements
Regulatory Capital Requirements under Banking Regulations [Text Block]	Note 10: Banks and bank holding companies are subject to various regulatory capital requirements administered by state and federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weighting and other factors. The Basel III Capital Rules became effective for Hamilton Bank on January 1, 2015 ( 1 1 1 In connection with the adoption of the Basel III Capital Rules, we elected to opt-out of the requirement to include accumulated other comprehensive income in Common Equity Tier 1. 1 Under the revised prompt corrective action requirements, as of January 1, 2015, 1 1 6.5%; 2 1 8%; 3 10% 4 1 5%. December 31, 2018, The implementation of the capital conservation buffer began on January 1, 2016 0.625% four 2.5% January 1, 2019. not As a result of the recently enacted Economic Growth, Regulatory Relief, and Consumer Protection Act (the “Act”), banking regulatory agencies must adopt a revised definition of “well capitalized” for financial institutions and holding companies with assets of less than $10 not may 8% 10%, In addition, as a result of the Act, the Federal Reserve Board amended its small bank holding company and savings and loan holding company policy statement to provide that holding companies with consolidated assets of less than $3 not not not no The following table presents actual and required capital ratios as of December 31, 2018 March 31, 2018 January 1, 2015 January 1, 2019 Minimum Capital Minimum Capital To be well Actual Required - Basel III Required - Basel III capitalized (1) Phase-In Schedule Fully Phased-In Amount Ratio Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) December 31, 2018 Common equity tier 1 capital (to risk-weighted assets) Hamilton Bank $ 43,688 12.55 % $ 22,186 6.375 % $ 24,361 7.00 % $ 22,621 6.50 % Hamilton Bancorp 49,329 14.12 % 22,277 6.375 % 24,461 7.00 % 22,714 6.50 % Total risk-based capital (to risk-weighted assets) Hamilton Bank 46,776 13.44 % 34,366 9.875 % 36,541 10.50 % 34,801 10.00 % Hamilton Bancorp 52,417 15.00 % 34,508 9.875 % 36,692 10.50 % 34,945 10.00 % Tier 1 capital (to risk-weighted assets) Hamilton Bank 43,688 12.55 % 27,406 7.875 % 29,581 8.50 % 27,841 8.00 % Hamilton Bancorp 49,329 14.12 % 27,519 7.875 % 27,703 8.50 % 27,956 8.00 % Tier 1 capital (to adjusted total assets) Hamilton Bank 43,688 8.91 % 19,619 4.000 % 19,619 4.00 % 24,523 5.00 % Hamilton Bancorp 49,329 10.00 % 19,732 4.000 % 19,732 4.00 % 24,665 5.00 % March 31, 2018 Common equity tier 1 capital (to risk-weighted assets) Hamilton Bank $ 39,126 10.61 % $ 23,498 6.375 % $ 25,802 7.00 % $ 23,959 6.50 % Hamilton Bancorp 47,308 12.79 % 23,582 6.375 % 25,894 7.00 % 24,044 6.50 % Total risk-based capital (to risk-weighted assets) Hamilton Bank 41,998 11.39 % 36,399 9.875 % 38,703 10.50 % 36,860 10.00 % Hamilton Bancorp 50,180 13.57 % 36,529 9.875 % 38,841 10.50 % 36,992 10.00 % Tier 1 capital (to risk-weighted assets) Hamilton Bank 39,126 10.61 % 29,027 7.875 % 31,331 8.50 % 29,488 8.00 % Hamilton Bancorp 47,308 12.79 % 29,131 7.875 % 31,443 8.50 % 29,593 8.00 % Tier 1 capital (to adjusted total assets) Hamilton Bank 39,126 7.64 % 20,497 4.000 % 20,497 4.00 % 25,621 5.00 % Hamilton Bancorp 47,308 9.15 % 20,674 4.000 % 20,674 4.00 % 25,843 5.00 % (1) - Under prompt corrective action Tier 1 In its regulatory report filed as of December 31, 2018, not may no

Note 11 - Stock Based Compensat

Note 11 - Stock Based Compensation	9 Months Ended
Note 11 - Stock Based Compensation	Dec. 31, 2018
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Note 11: Stock Based Compensation In November 2013, “2013 2013 148,120 370,300 December 31, 2018, 92,701 268,204 2013 Stock Options: Under the above plan, the exercise price for stock options is the market price at date of grant. The maximum option term is ten five 20% first first $61,514 $184,542 three nine December 31, 2018 $57,392 $172,177 three nine December 31, 2017, The fair value of each option award is estimated on the date of grant using a closed form option valuation (Black-Scholes) model that uses the assumptions noted in the table below. Expected volatilities are based on historical data. The Company uses historical data to estimate option exercise and post-vesting termination behavior. The expected term of options granted represents the period of time that options granted are expected to be outstanding, which takes into account that the options are not The fair value of options granted to date was determined using the following weighted-average assumptions as of grant date. Grant Date Number of Options Granted Risk Free Interest Rate Expected Term (in years) Expected Stock Price Volatility Dividend Yield Fair Value of Options Granted February 3, 2014 225,150 2.07 % 7.0 27.30 % 0.00 % $ 4.65 November 1, 2016 19,000 1.61 % 7.0 27.17 % 0.00 % $ 4.35 February 3, 2017 3,700 2.27 % 7.0 27.26 % 0.00 % $ 5.18 April 1, 2018 20,354 2.67 % 7.0 19.61 % 0.00 % $ 4.05 The following tables summarize the Company’s stock option activity and related information for the periods ended: December 31, 2018: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Outstanding at April 1, 2018 242,350 $ 13.84 6.1 Granted 20,354 14.25 9.3 Exercised - - - Forfeited, exchanged or expired - - - Outstanding at December 31, 2018 262,704 $ 13.87 5.6 Vested at December 31, 2018 184,060 $ 13.84 5.2 March 31, 2018: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Outstanding at April 1, 2017 242,350 $ 13.84 7.1 Granted - - - Exercised - - - Forfeited, exchanged or expired - - - Outstanding at March 31, 2018 242,350 $ 13.84 6.1 Vested at March 31, 2018 180,260 $ 13.84 5.8 As of December 31, 2018, $146,164 1.7 $13.90 December 31, 2018, $18,583. Restricted Stock: The specific terms of each restricted stock award are determined by the Compensation Committee at the date of the grant. Compensation expense is recognized over the vesting period of the awards based on the fair value of the stock at the grant date. Restricted stock awards granted shall vest in five 20% first first The following table presents a summary of the activity in the Company’s restricted stock for the periods ended: Weighted-Average December 31, 2018: Shares Fair Value Nonvested shares at April 1, 2018 19,440 $ 13.74 Granted 8,801 14.25 Vested (380 ) 13.61 Forfeited - - Nonvested shares at December 31, 2018 27,861 $ 13.90 Fair Value of shares vested at December 31, 2018 $ 901,276 Weighted-Average March 31, 2018: Shares Fair Value Nonvested shares at April 1, 2017 36,220 $ 13.76 Granted - - Vested (16,780 ) 13.78 Forfeited - - Nonvested shares at March 31, 2018 19,440 $ 13.74 Fair Value of shares vested at March 31, 2018 $ 918,555 The Company recorded restricted stock awards expense of $64,089 $192,268 three nine December 31, 2018 $57,819 $173,457 three nine December 31, 2017, December 31, 2018, $158,591 2013 1.6

Note 12 - Fair Value Measuremen

Note 12 - Fair Value Measurements	9 Months Ended
Note 12 - Fair Value Measurements	Dec. 31, 2018
Notes to Financial Statements
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]	Note 12: Fair Value Measurements Generally accepted accounting principles define fair value, establish a framework for measuring fair value, and establish a hierarchy for determining fair value measurement. three three Level 1 Level 2 not Level 3 one The following is a description of the valuation methods used for instruments measured at fair value as well as the general classification of such instruments pursuant to the applicable valuation method. Fair value measurements on a recurring basis Securities available for sale – If quoted prices are available in an active market for identical assets, securities are classified within Level 1 not December 31, 2018, March 31, 2018, Level 1 Level 2 Level 3 December 31, 2018 inputs inputs inputs Total U.S. government agencies $ - $ 727,336 $ - $ 727,336 Municipal bonds - 11,641,229 - 11,641,229 Corporate bonds - 1,900,504 1,900,504 Mortgage-backed securities - 51,308,786 - 51,308,786 Total investment securities available for sale $ - $ 63,677,351 $ 1,900,504 $ 65,577,855 Level 1 Level 2 Level 3 March 31, 2018 inputs inputs inputs Total U.S. government agencies $ - $ 2,718,649 $ - $ 2,718,649 Municipal bonds - 11,705,991 - 11,705,991 Corporate bonds - 1,954,076 1,954,076 Mortgage-backed securities - 59,025,404 16 59,025,420 Total investment securities available for sale $ - $ 73,450,044 $ 1,954,092 $ 75,404,136 Derivative – Interest rate swap agreements – The fair values of derivatives are based on valuation models using observable market data as of the measurement date (Level 2 third December 31, 2018, March 31, 2018, Level 1 Level 2 Level 3 December 31, 2018 inputs inputs inputs Total Loans - Commercial real estate loan $ - $ 2,984,595 $ - $ 2,984,595 Derivative - Interest rate swap designated as fair value hedge - 43,107 - 43,107 Derivatives - Interest rate swaps designated as cash flow hedge - 123,118 - 123,118 Level 1 Level 2 Level 3 March 31, 2018 inputs inputs inputs Total Loans - Commercial real estate loan $ - $ 3,022,744 $ - $ 3,022,744 Derivative - Interest rate swap designated as fair value hedge - 69,148 - 69,148 Derivatives - Interest rate swaps designated as cash flow hedge - 217,464 - 217,464 The following table presents the valuation and unobservable inputs for Level 3 December 31, 2018: Valuation Unobservable Range of Description Fair Value Methodology Inputs Inputs Investment securities $ 1,900,504 3rd party valuation Discount to reflect current market conditions 0.00% - 10.00% The following table presents a reconciliation of the investments which are measured at fair value on a recurring basis using significant unobservable inputs (Level 3 Nine Months Fiscal Year Ended Ended December 31, 2018 March 31, 2018 Balance, beginning of year $ 1,954,092 $ 1,930,786 Transfers in: Corporate bonds - 1,954,076 Mortgage-backed securities - 16 Municipal bonds - - Transfers out: Corporate bonds - - Mortgage-backed securities 16 2,473 Municipal bonds - 1,928,313 Change in valuation (53,572 ) - Balance, end of year $ 1,900,504 $ 1,954,092 Fair value measurements on a nonrecurring basis Impaired Loans - The Bank has measured impairment generally based on the fair value of the loan's collateral. Fair value is generally determined based upon independent appraisals of the properties, or discounted cash flows based upon the expected proceeds. These assets are included as Level 3 December 31, 2018, March 31, 2018, $7,543,269 $8,720,339 $255,863 $266,256, Foreclosed real estate – The Bank's foreclosed real estate is measured at the lower of carrying value or fair value less estimated cost to sell. At December 31, 2018 March 31, 2018, $457,778 3. Level 1 Level 2 Level 3 December 31, 2018 inputs inputs inputs Total Impaired loans $ - $ - $ 7,289,458 $ 7,289,458 Foreclosed real estate - - 457,778 457,778 Level 1 Level 2 Level 3 March 31, 2018 inputs inputs inputs Total Impaired loans $ - $ - $ 8,454,083 $ 8,454,083 Foreclosed real estate - - 457,778 457,778 The following table presents the valuation and unobservable inputs for Level 3 December 31, 2018: Valuation Unobservable Range of Description Fair Value Methodology Inputs Inputs Impaired loans, net of allowance $ 7,289,458 Appraised value Discount to reflect current market conditions 0.00% - 25.00% Discounted cash flows Discount rates 2.63% - 7.25% Foreclosed real estate $ 457,778 Appraised value Discount to reflect current market conditions 0.00% - 25.00% The following table summarizes changes in foreclosed real estate for the periods shown, which is measured on a nonrecurring basis using significant unobservable, level 3, Nine Months Fiscal Year Ended Ended December 31, 2018 March 31, 2018 Balance at beginning of period $ 457,778 $ 503,094 Transfer to foreclosed real estate 150,052 23,834 Write-down of foreclosed real estate - (31,955 ) Proceeds from sale of foreclosed real estate (145,820 ) (35,896 ) Loss on sale of foreclosed real estate (4,232 ) (1,299 ) Balance at end of period $ 457,778 $ 457,778 The remaining financial assets and liabilities are not may not December 31, 2018 March 31, 2018 Carrying Fair Carrying Fair amount value amount value Financial assets Level 1 inputs Cash and cash equivalents $ 26,547,840 $ 26,547,840 $ 23,368,415 $ 23,368,415 Level 2 inputs Federal Home Loan Bank stock 2,676,200 2,676,200 3,122,400 3,122,400 Bank-owned life insurance 17,799,920 17,799,920 17,455,850 17,455,850 Level 3 inputs Certificates of deposit held as investment 499,121 485,928 499,189 492,751 Loans receivable, net of unearned income 366,428,914 352,433,858 387,328,993 385,818,260 Financial liabilities Level 2 inputs Deposits 384,170,942 385,031,487 405,142,975 405,026,957 Advance payments by borrowers for taxes and insurance 1,059,677 1,059,677 1,962,665 1,962,665 Borrowings 51,050,000 50,394,636 60,672,140 60,494,922 The fair values of cash and cash equivalents and advances by borrowers for taxes and insurance are estimated to equal the carrying amount. The fair values of Federal Home Loan Bank stock and bank-owned life insurance are estimated to equal carrying amounts, which are based on repurchase prices of the FHLB stock and the insurance company. Beginning in the first 2018, 2016 01, first June 30, 2018. 3 March 31, 2018 December 31, 2018 March 31, 2018 not The fair value of certificates of deposit held as investments is estimated based on interest rates currently offered for certificates of deposit with similar remaining maturities. The fair value of interest-bearing checking, savings, and money market deposit accounts is equal to the carrying amount due to these products having no The fair value of borrowings is estimated based on interest rates currently offered for borrowings of similar remaining maturities. The fair value of outstanding loan commitments and unused lines of credit are considered to be the same as the contractual amount and are not

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
Significant Accounting Policies (Policies)	Dec. 31, 2018
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation
Use of Estimates, Policy [Policy Text Block]	Use of Estimates.
Marketable Securities, Policy [Policy Text Block]	Investment Securities. may December 31, 2018 March 31, 2018 Investment securities designated as available for sale are stated at estimated fair value based on quoted market prices. They represent those securities which management may may In estimating other-than-temporary impairment losses, management considers the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of the Bank to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value.
Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block]	Loans Held For Sale .
Finance, Loans and Leases Receivable, Policy [Policy Text Block]	Loans Receivable. Loans are reported at their outstanding unpaid principal balance adjusted for the allowance for loan loss, premiums on loans acquired, and/or any deferred fees or costs on originated loans. Interest revenue is accrued on the unpaid principal balance. Loan origination fees and the direct costs of underwriting and closing loans are recognized over the life of the related loan as an adjustment to yield using a method that approximates the interest method. Any differences that arise from prepayment will result in a recalculation of the effective yield. Loans are generally placed on nonaccrual status when they are 90 not Loans are considered impaired when, based on current information, management considers it unlikely that collection of principal and interest payments will be made according to contractual terms. If collection of principal is evaluated as doubtful, all payments are applied to principal. Impaired loans are measured: (i) at the present value of expected cash flows discounted at the loan’s effective interest rate; (ii) at the observable market price; or (iii) at the fair value of the collateral if the loan is collateral dependent. If the measure of the impaired loan is less than the recorded investment in the loan, an impairment is recognized through an allocation of the allowance for loan losses and corresponding provision for loan losses. Generally, identified impairments are charged-off against the allowance for loan losses. Troubled debt restructurings are loans for which Hamilton, for legal or economic reasons related to a debtor’s financial difficulties, has granted a concession to the debtor that it otherwise would not ● Reduction of the stated interest rate; ● Extension of the maturity date or dates at a stated interest rate lower than the current market rate for new debt with similar risk; ● Reduction of the face amount or maturity amount of the debt as stated in the instrument or other agreement; or ● Reduction of accrued interest.
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Allowance for Loan Losses. The allowance for loan losses is increased by provisions charged to income and reduced by charge-offs, net of recoveries. Management’s periodic evaluation of the adequacy of the allowance is based on the Bank’s past loan loss experience, known and inherent risks in the loan portfolio, adverse situations that may 48 September 30, 2018, 36 48 two 48 48 may not September 30, 2018 $294,000 Management considers a number of factors in estimating the required level of the allowance. These factors include: historical loss experience in the loan portfolios; the levels and trends in past-due and nonaccrual loans; the status of nonaccrual loans and other loans identified as having the potential for further deterioration; credit risk and industry concentrations; trends in loan volume; the effects of any changes in lending policies and procedures or underwriting standards; and a continuing evaluation of the economic environment. As part of the estimation process, management keeps the net charge-off history as a percentage of loans, as it pertains to each loan segment, constant across all risk ratings and alters the qualitative factors either up or down based upon the respective risk rating for each loan segment.
Finance, Loan and Lease Receivables, Held for Investments, Foreclosed Assets Policy [Policy Text Block]	Foreclosed Real Estate.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Other Intangible Assets. may eight not
Derivatives, Policy [Policy Text Block]	Derivative Financial Instruments and Hedging Activities . For derivatives qualifying as cash flow hedges, the Company also documents its assessment, both at hedge inception and on an ongoing basis, of whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in fair values or cash flows of hedged items. The effective portion of changes in fair value of derivatives that are designated and qualify as cash flow hedges is recognized in the consolidated statement of comprehensive income (loss). The gain or loss relating to the ineffective portion is recognized immediately in the consolidated statement of operations as a gain or loss. When a hedging instrument expires or is sold, or when a hedge no no For derivative instruments designated as fair-value hedges, the change in fair value of the derivative is recognized in the consolidated statement of operations under the same heading as the change in fair value of the hedged item for the portion attributable to the hedged risk. For accounting purposes, if the derivative is highly effective, the change in fair values relating to the asset or liability and the hedged item will offset one no Gains (losses) on derivatives representing either hedge components excluded from the assessment of effectiveness or hedge ineffectiveness are recognized in earnings.
Revenue from Contract with Customer [Policy Text Block]	Revenue from Contracts with Customers . 606, 606” 606, not not 606. not 606
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock Based Compensation.
Income Tax, Policy [Policy Text Block]	Income Taxes. not not
Earnings Per Share, Policy [Policy Text Block]	Earnings Per Common Share.

Note 3 - Earnings Per Share (Ta

Note 3 - Earnings Per Share (Tables)	9 Months Ended
Note 3 - Earnings Per Share (Tables)	Dec. 31, 2018
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended Three Months Ended Nine Months Ended Nine Months Ended December 31, 2018 December 31, 2017 December 31, 2018 December 31, 2017 Net income $ (124,683 ) $ (1,927,190 ) $ 1,419,288 $ (1,124,060 ) Weighted average common shares outstanding - basic 3,209,207 3,189,056 3,209,100 3,188,949 Weighted average common shares outstanding - diluted 3,209,207 3,189,056 3,209,895 3,188,949 Income per common share - basic and diluted $ (0.04 ) $ (0.60 ) $ 0.44 $ (0.35 ) Anti-dilutive shares 184,060 118,525 183,265 118,525

Note 4 - Investment Securitie_2

Note 4 - Investment Securities Available for Sale (Tables)	9 Months Ended
Note 4 - Investment Securities Available for Sale (Tables)	Dec. 31, 2018
Notes Tables
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Gross Gross Amortized unrealized unrealized Fair December 31, 2018 cost gains losses value U.S. government agencies $ 744,186 $ - $ 16,850 $ 727,336 Municipal bonds 12,347,163 - 705,934 11,641,229 Corporate bonds 2,000,000 - 99,496 1,900,504 Mortgage-backed securities 52,844,355 11,438 1,547,007 51,308,786 $ 67,935,704 $ 11,438 $ 2,369,287 $ 65,577,855 Gross Gross Amortized unrealized unrealized Fair March 31, 2018 cost gains losses value U.S. government agencies $ 2,753,346 $ - $ 34,697 $ 2,718,649 Municipal bonds 12,435,068 - 729,077 11,705,991 Corporate bonds 2,000,000 - 45,924 1,954,076 Mortgage-backed securities 61,078,665 12,993 2,066,238 59,025,420 $ 78,267,079 $ 12,993 $ 2,875,936 $ 75,404,136
Investments Classified by Contractual Maturity Date [Table Text Block]	Available for Sale December 31, 2018 March 31, 2018 Amortized Fair Amortized Fair cost value cost value Maturing Within one year $ - $ - $ 2,009,160 $ 1,995,625 Over one to five years 1,227,258 1,197,309 1,231,928 1,196,368 Over five to ten years 4,665,976 4,447,904 3,578,827 3,500,641 Over ten years 9,198,115 8,623,856 10,368,499 9,686,082 Mortgage-backed securities, in monthly installments 52,844,355 51,308,786 61,078,665 59,025,420 $ 67,935,704 $ 65,577,855 $ 78,267,079 $ 75,404,136
Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]	Less than 12 months 12 months or longer Total Gross unrealized Fair Gross unrealized Fair Gross unrealized Fair December 31, 2018 losses value losses value losses value U.S. government agencies $ - $ - $ 16,850 $ 727,336 $ 16,850 $ 727,336 Municipal bonds - - 705,934 11,641,229 705,934 11,641,229 Corporate bonds - - 99,496 1,900,504 99,496 1,900,504 Mortgage-backed securities 56,462 1,801,231 1,490,545 46,787,724 1,547,007 48,588,955 $ 56,462 $ 1,801,231 $ 2,312,825 $ 61,056,793 $ 2,369,287 $ 62,858,024 Less than 12 months 12 months or longer Total Gross unrealized Fair Gross unrealized Fair Gross unrealized Fair March 31, 2018 losses value losses value losses value U.S. government agencies $ 21,163 $ 723,023 $ 13,534 $ 1,995,625 $ 34,697 $ 2,718,648 Municipal bonds - - 729,077 11,705,991 729,077 11,705,991 Corporate bonds - - 45,924 1,954,076 45,924 1,954,076 Mortgage-backed securities 383,987 15,880,948 1,682,251 40,684,836 2,066,238 56,565,784 $ 405,150 $ 16,603,971 $ 2,470,786 $ 56,340,528 $ 2,875,936 $ 72,944,499

Note 5 - Loans Receivable and_2

Note 5 - Loans Receivable and Allowance for Loan Losses (Tables)	9 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	December 31, 2018 March 31, 2018 Legacy (1) Acquired Total Loans % of Total Legacy (1) Acquired Total Loans % of Total Real estate loans: One-to four-family: Residential (2) $ 83,117,881 $ 66,255,260 149,373,141 40 % $ 85,248,184 $ 72,749,066 $ 157,997,250 41 % Residential construction 3,430,203 - 3,430,203 1 % 5,450,827 - 5,450,827 1 % Investor (3) 7,337,281 16,407,266 23,744,547 6 % 9,275,031 17,460,809 26,735,840 7 % Commercial 105,755,786 9,289,784 115,045,570 31 % 100,403,769 11,762,485 112,166,254 29 % Commercial construction 1,543,313 1,059,217 2,602,530 1 % 5,763,784 1,352,019 7,115,803 2 % Total real estate loans 201,184,464 93,011,527 294,195,991 80 % 206,141,595 103,324,379 309,465,974 80 % Commercial business (4) 35,276,493 1,706,509 36,983,002 10 % 38,302,739 1,841,226 40,143,965 10 % Home equity loans 15,077,068 4,941,051 20,018,119 5 % 13,956,327 6,039,462 19,995,789 5 % Consumer (5) 16,329,237 699,371 17,028,608 5 % 18,849,448 766,063 19,615,511 5 % Total Loans 267,867,262 100,358,458 368,225,720 100 % 277,250,109 111,971,130 389,221,239 100 % Net deferred loan origination fees and costs (178,056 ) - (178,056 ) (212,746 ) - (212,746 ) Loan premium (discount) 1,708,908 (299,956 ) 1,408,952 1,922,428 (510,036 ) 1,412,392 $ 269,398,114 $ 100,058,502 $ 369,456,616 $ 278,959,791 $ 111,461,094 $ 390,420,885
Allowance for Credit Losses on Financing Receivables [Table Text Block]	Three Months Ended December 31, 2018 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 665,676 $ 314,571 $ 1,312,441 $ 12,390 $ 532,611 $ 72,831 $ 98,676 $ 21,733 $ 3,030,929 Charge-offs - (32,909 ) - - (133,729 ) - - - (166,638 ) Recoveries 41,059 33,609 - - 10,880 - 1,267 - 86,815 Provision for credit losses (24,321 ) (36,632 ) (31,557 ) (4,090 ) 160,895 1,555 (4,214 ) 18,364 80,000 Ending balance $ 682,414 $ 278,639 $ 1,280,884 $ 8,300 $ 570,657 $ 74,386 $ 95,729 $ 40,097 $ 3,031,106 Nine Months Ended December 31, 2018 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 608,723 $ 51,690 $ 1,253,383 $ 33,430 $ 673,982 $ 69,459 $ 131,236 $ - $ 2,821,903 Charge-offs (13,769 ) (41,022 ) (31,320 ) - (208,729 ) - (2,465 ) - (297,305 ) Recoveries 43,301 33,675 31,320 - 10,880 - 4,836 - 124,012 Provision for credit losses 44,159 234,296 27,501 (25,130 ) 94,524 4,927 (37,878 ) 40,097 382,496 Ending balance $ 682,414 $ 278,639 $ 1,280,884 $ 8,300 $ 570,657 $ 74,386 $ 95,729 $ 40,097 $ 3,031,106 Allowance allocated to: Legacy Loans: Individually evaluated for impairment $ 253,811 $ - $ - $ - $ - $ - $ - $ - $ 253,811 Collectively evaluated for impairment 276,937 50,593 1,241,051 7,254 566,217 59,952 95,516 40,097 2,337,617 Acquired Loans: Individually evaluated for impairment $ - $ - $ - $ - $ - $ - $ - $ - $ - Collectively evaluated for impairment 151,666 228,046 39,833 1,046 4,440 14,434 213 - 439,678 Three Months Ended December 31, 2017 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 528,288 $ 52,255 $ 1,360,433 $ 12,074 $ 327,130 $ 62,570 $ 128,241 $ - $ 2,470,991 Charge-offs - (111,360 ) (100,236 ) - - - - - (211,596 ) Recoveries 3,937 - - - 171 - 1,034 - 5,142 Provision for credit losses 35,875 103,790 148,707 11,100 45,987 619 (1,078 ) - 345,000 Ending balance $ 568,100 $ 44,685 $ 1,408,904 $ 23,174 $ 373,288 $ 63,189 $ 128,197 $ - $ 2,609,537 Nine Months Ended December 31, 2017 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Unallocated Total Allowance for credit losses: Beginning balance $ 553,539 $ 35,275 $ 1,375,894 $ 9,031 $ 149,461 $ 70,071 $ 1,544 $ - $ 2,194,815 Charge-offs (8,907 ) (126,482 ) (100,236 ) - - - (486 ) - (236,111 ) Recoveries 3,937 18,129 - - 551 - 3,216 - 25,833 Provision for credit losses 19,531 117,763 133,246 14,143 223,276 (6,882 ) 123,923 - 625,000 Ending balance $ 568,100 $ 44,685 $ 1,408,904 $ 23,174 $ 373,288 $ 63,189 $ 128,197 $ - $ 2,609,537 Allowance allocated to: Legacy Loans: Individually evaluated for impairment $ 272,707 $ - $ - $ - $ - $ - $ - $ - $ 272,707 Collectively evaluated for impairment 295,393 44,685 1,408,904 23,174 373,288 63,189 128,197 - 2,336,830 Acquired Loans: Individually evaluated for impairment $ - $ - $ - $ - $ - $ - $ - $ - $ - Collectively evaluated for impairment - - - - - - - - - December 31, 2018 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Total Legacy Loans: Individually evaluated for impairment $ 1,773,176 $ 31,752 $ 4,139,177 $ - $ 743,160 $ 6,785 $ 91,662 $ 6,785,712 Collectively evaluated for impairment 84,774,908 7,305,529 101,616,609 1,543,313 34,533,333 15,070,283 16,237,575 261,081,550 Ending balance $ 86,548,084 $ 7,337,281 $ 105,755,786 $ 1,543,313 $ 35,276,493 $ 15,077,068 $ 16,329,237 $ 267,867,262 Acquired Loans: Individually evaluated for impairment $ 440,242 $ 261,659 $ - $ - $ - $ 164 $ 55,492 $ 757,557 Collectively evaluated for impairment 65,815,018 16,145,606 9,289,784 1,059,217 1,706,509 4,940,887 643,880 99,600,901 Ending balance $ 66,255,260 $ 16,407,265 $ 9,289,784 $ 1,059,217 $ 1,706,509 $ 4,941,051 $ 699,372 $ 100,358,458 December 31, 2017 Residential Real Estate Investor Real Estate Commercial Real Estate Commercial Construction Commercial Business Home Equity Consumer Total Legacy Loans: Individually evaluated for impairment $ 1,697,585 $ 121,514 $ 4,500,043 $ - $ 905,178 $ 21,579 $ - $ 7,245,899 Collectively evaluated for impairment 85,532,435 7,254,483 96,357,409 3,995,441 38,083,051 13,780,512 20,075,548 265,078,879 Ending balance $ 87,230,020 $ 7,375,997 $ 100,857,452 $ 3,995,441 $ 38,988,229 $ 13,802,091 $ 20,075,548 $ 272,324,778 Acquired Loans: Individually evaluated for impairment $ 1,061,049 $ 579,172 $ 199,920 $ - $ - $ - $ 56,708 $ 1,896,849 Collectively evaluated for impairment 73,640,662 17,629,734 11,960,924 856,970 1,928,232 6,874,136 728,392 113,619,050 Ending balance $ 74,701,711 $ 18,208,906 $ 12,160,844 $ 856,970 $ 1,928,232 $ 6,874,136 $ 785,100 $ 115,515,899
Past Due Financing Receivables [Table Text Block]	December 31, 2018 March 31, 2018 Legacy Acquired Total Legacy Acquired Total Current $ 262,125,497 $ 99,620,976 $ 361,746,473 $ 270,807,643 $ 109,972,473 $ 380,780,116 Accruing past due loans: 30-59 days past due: Real estate loans: Residential 71,020 18,488 89,508 63,618 689,364 752,982 Investor - 29,357 29,357 - - - Commercial - - - - - - Commercial construction - - - - - - Commercial business 120,418 - 120,418 135,502 - 135,502 Home equity loans - 68 68 - - - Consumer 23,357 25,753 49,110 148,876 - 148,876 Total 30-59 days past due 214,795 73,666 288,461 347,996 689,364 1,037,360 60-89 days past due: Real estate loans: Residential 72,377 121,223 193,600 70,291 - 70,291 Investor - - - - - - Commercial - - - - - - Commercial construction - - - - - - Commercial business 460,762 - 460,762 134,524 - 134,524 Home equity loans - - - - - - Consumer 5,233 - 5,233 28,300 - 28,300 Total 60-89 days past due 538,372 121,223 659,595 233,115 - 233,115 90 or more days past due: Real estate loans: Residential - - - - - - Investor 222,485 113,029 335,514 734,818 471,423 1,206,241 Commercial - - - - - - Commercial construction - - - - - - Commercial business - - - - - - Home equity loans - - - - - - Consumer - - - - - - Total 90 or more days past due 222,485 113,029 335,514 734,818 471,423 1,206,241 Total accruing past due loans 975,652 307,918 1,283,570 1,315,929 1,160,787 2,476,716 Non-accruing loans: Real estate loans: Residential 365,610 300,530 666,140 526,584 338,060 864,644 Investor 31,752 128,937 160,689 60,949 300,872 361,821 Commercial 4,139,177 - 4,139,177 4,356,264 198,938 4,555,202 Commercial construction - - - - - - Commercial business 143,145 - 143,145 165,285 - 165,285 Home equity loans - 97 97 12,605 - 12,605 Consumer 86,429 - 86,429 4,850 - 4,850 Non-accruing loans: 4,766,113 429,564 5,195,677 5,126,537 837,870 5,964,407 Total Loans $ 267,867,262 $ 100,358,458 $ 368,225,720 $ 277,250,109 $ 111,971,130 $ 389,221,239 Nonaccrual interest not accrued: Real estate loans: Residential $ 2,289 $ 7,237 $ 9,526 $ 8,250 $ 53,120 $ 61,370 Investor 2,066 6,490 8,556 8,513 15,604 24,117 Commercial 252,381 - 252,381 294,619 - 294,619 Commercial construction - - - - - - Commercial business 8,796 - 8,796 12,891 - 12,891 Home equity loans - - - 436 - 436 Consumer 1,459 - 1,459 385 - 385 Total nonaccrual interest not accrued $ 266,991 $ 13,727 $ 280,718 $ 325,094 $ 68,724 $ 393,818
Impaired Financing Receivables [Table Text Block]	Impaired Loans at December 31, 2018 Three months ended December 31, 2018 Nine months ended December 31, 2018 Unpaid Contractual Average Interest Average Interest Principal Recorded Related Recorded Income Recorded Income Balance Investment Allowance Investment Recognized Investment Recognized Legacy: With no related allowance recorded: Real estate loans: Residential $ 706,098 $ 538,723 $ - $ 558,414 $ 3,719 $ 538,965 $ 7,666 Investor - - - - - - - Commercial 6,375,413 4,139,177 - 4,309,168 - 4,280,325 53,278 Commercial construction Commercial business 1,369,695 743,160 - 863,260 25,781 925,694 70,558 Home equity loans 33,287 6,785 - 7,036 1,910 7,293 2,043 Consumer 91,745 91,662 - 92,474 2,542 92,822 2,542 With an allowance recorded: Real estate loans: Residential $ 1,248,874 $ 1,234,453 $ 253,811 $ 1,237,197 $ 12,337 $ 1,246,235 $ 37,255 Investor 57,831 31,752 - 32,427 1,108 32,291 1,108 Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total legacy impaired 9,882,943 6,785,712 253,811 7,099,976 47,397 7,123,625 174,450 Acquired (1): With no related allowance recorded: Real estate loans: Residential 456,272 440,242 - 439,495 5,457 425,256 7,179 Investor 405,538 261,659 - 263,562 4,722 246,751 13,859 Commercial Commercial construction Commercial business Home equity loans 37,858 164 - 238 1,851 79 2,501 Consumer 88,545 55,492 - 56,249 1,401 57,957 3,949 With an allowance recorded: Real estate loans: Residential - - - - - - - Investor - - - - - - - Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total acquired impaired 988,213 757,557 - 759,544 13,431 730,043 27,488 Total impaired $ 10,871,156 $ 7,543,269 $ 253,811 $ 7,859,520 $ 60,828 $ 7,853,668 $ 201,938 Impaired Loans at December 31, 2017 Three months ended December 31, 2017 Nine months ended December 31, 2017 Unpaid Contractual Average Interest Average Interest Principal Recorded Related Recorded Income Recorded Income Balance Investment Allowance Investment Recognized Investment Recognized Legacy: With no related allowance recorded: Real estate loans: Residential $ 513,736 $ 371,312 $ - $ 376,225 $ 280 $ 387,772 $ 1,451 Investor 127,420 121,514 122,576 - 123,362 3,772 Commercial 6,487,088 4,500,043 - 4,689,502 - 4,703,598 1,077 Commercial construction - - - - - - - Commercial business 1,303,000 905,178 - 937,594 24,038 894,330 75,926 Home equity loans 48,218 21,579 - 22,072 76 23,100 316 Consumer - - - - - - - With an allowance recorded: Real estate loans: Residential 1,354,169 1,326,273 272,707 1,330,015 13,248 1,341,584 39,333 Investor - - - - - - - Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total legacy impaired 9,833,631 7,245,899 272,707 7,477,984 37,642 7,473,746 121,875 Acquired (1): With no related allowance recorded: Real estate loans: Residential 1,211,254 1,061,049 - 1,063,445 4,247 1,077,738 26,087 Investor 687,849 579,172 - 663,538 2,893 697,174 34,582 Commercial 249,920 199,920 - 200,589 1,888 202,263 5,700 Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans 42,583 - - - - - 600 Consumer 99,349 56,708 - 58,084 1,338 62,234 4,464 With an allowance recorded: Real estate loans: Residential - - - - - - - Investor - - - - - - - Commercial - - - - - - - Commercial construction - - - - - - - Commercial business - - - - - - - Home equity loans - - - - - - - Consumer - - - - - - - Total acquired impaired 2,290,955 1,896,849 - 1,985,656 10,366 2,039,409 71,433 Total impaired $ 12,124,586 $ 9,142,748 $ 272,707 $ 9,463,640 $ 48,008 $ 9,513,155 $ 193,308 Impaired Loans at March 31, 2018 For the Year Ended March 31, 2018 Unpaid Contractual Average Interest Principal Recorded Related Recorded Income Balance Investment Allowance Investment Recognized Legacy: With no related allowance recorded: Real estate loans: Residential $ 665,051 $ 517,600 $ - $ 548,636 $ 9,257 Investor 126,389 60,949 118,175 3,772 Commercial 6,487,088 4,356,264 - 4,634,504 1,077 Commercial construction - - - - - Commercial business 1,562,756 795,410 - 1,082,773 103,474 Home equity loans 47,650 20,595 - 22,604 392 Consumer 48,115 34,266 - 38,514 1,576 With an allowance recorded: Real estate loans: Residential 1,336,078 1,309,440 266,256 1,328,919 51,928 Investor - - - - - Commercial - - - - - Commercial construction - - - - - Commercial business - - - - - Home equity loans - - - - - Consumer - - - - - Total legacy impaired 10,273,127 7,094,524 266,256 7,774,125 171,476 Acquired (1): With no related allowance recorded: Real estate loans: Residential 1,082,484 922,252 - 945,602 26,437 Investor 682,045 444,254 - 659,246 37,368 Commercial 248,938 198,938 - 201,519 7,336 Commercial construction - - - - - Commercial business - - - - - Home equity loans 40,473 - - - 1,329 Consumer 95,986 60,371 - 64,013 6,062 With an allowance recorded: Real estate loans: Residential - - - - - Investor - - - - - Commercial - - - - - Commercial construction - - - - - Commercial business - - - - - Home equity loans - - - - - Consumer - - - - - Total acquired impaired 2,149,926 1,625,815 - 1,870,380 78,532 Total impaired $ 12,423,053 $ 8,720,339 $ 266,256 $ 9,644,505 $ 250,008
Certain Loans Acquired In Transfer not Accounted for as Debt Securities Changes in Recorded Investment Schedule [Table Text Block]	December 31, 2018 December 31, 2017 Recorded investment at beginning of period $ 1,021,424 $ 1,341,935 Accretion 2,505 25,964 Reductions for payments (649,168 ) (324,806 ) Recorded investment at end of period $ 374,761 $ 1,043,093 Oustanding principal balance at end of period $ 470,368 $ 1,297,471
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Table Text Block]	December 31, 2018 December 31, 2017 Accretable yield, beginning of period $ 31,895 $ 59,639 Accretion (2,505 ) (25,964 ) Reclassification from nonaccretable difference - - Accretable yield, end of period $ 29,390 $ 33,675
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Number of December 31, 2018 contracts Performing Nonperforming Total Real estate loans: Residential 16 $ 1,295,469 $ 226,119 $ 1,521,588 Investor - - - - Commercial 2 - 1,195,421 1,195,421 Commercial construction - - - - Commercial business 1 600,016 - 600,016 Home equity loans - - - - Consumer - - - - 19 $ 1,895,485 $ 1,421,540 $ 3,317,025 Number of March 31, 2018 contracts Performing Nonperforming Total Real estate loans: Residential 15 $ 1,230,166 $ 312,964 $ 1,543,130 Investor - - - - Commercial 2 - 1,195,421 1,195,421 Commercial construction - - - - Commercial business 1 605,488 - 605,488 Home equity loans - - - - Consumer - - - - 18 $ 1,835,654 $ 1,508,385 $ 3,344,039
Schedule Of Modified Troubled Debt Restructurings On Financing Receivables [Table Text Block]	Loans Modified as a TDR for the Three Months Ended December 31, 2018 December 31, 2017 Number of Outstanding recorded Number of Outstanding recorded Troubled Debt Restructurings contracts investment contracts investment Real estate loans: Residential - $ - 2 $ 50,432 Loans Modified as a TDR for the nine months ended December 31, 2018 December 31, 2017 Number of Outstanding recorded Number of Outstanding recorded Troubled Debt Restructurings contracts investment contracts investment Real estate loans: One-to four-family 1 $ 20,565 3 $ 52,363
Financing Receivable Credit Quality Indicators [Table Text Block]	December 31, 2018 March 31, 2018 LEGACY ACQUIRED TOTAL LEGACY ACQUIRED TOTAL Risk Rating: Rating - Pass: Real estate loans: Residential $ 83,743,323 $ 64,856,380 $ 148,599,703 $ 87,863,805 $ 70,901,293 $ 158,765,098 Investor 7,305,529 15,873,106 23,178,635 9,214,082 16,719,346 25,933,428 Commercial 101,616,609 9,289,784 110,906,393 92,955,370 11,563,547 104,518,917 Commercial construction 1,543,313 1,059,217 2,602,530 5,763,784 1,352,019 7,115,803 Commercial Business 34,835,870 1,706,509 36,542,379 37,978,293 1,841,226 39,819,519 Home Equity 15,070,123 4,805,766 19,875,889 13,935,732 5,928,787 19,864,519 Consumer 16,227,625 669,618 16,897,243 18,733,489 733,669 19,467,158 Total Pass 260,342,392 98,260,380 358,602,772 266,444,555 109,039,887 375,484,442 Rating - Special Mention: Real estate loans: Residential 2,327,412 958,638 3,286,050 2,365,652 925,521 3,291,173 Investor - 273,806 273,806 - 297,209 297,209 Commercial - - - 3,092,135 - 3,092,135 Commercial construction - - - - - - Commercial Business 297,478 - 297,478 134,524 - 134,524 Home Equity - 135,121 135,121 - 110,675 110,675 Consumer 9,950 - 9,950 96,474 - 96,474 Total Special Mention 2,634,840 1,367,565 4,002,405 5,688,785 1,333,405 7,022,190 Rating - Substandard: Real estate loans: Residential 477,349 440,242 917,591 469,554 922,252 1,391,806 Investor 31,752 260,354 292,106 60,949 444,254 505,203 Commercial 4,139,177 - 4,139,177 4,356,264 198,938 4,555,202 Commercial construction - - - - - - Commercial Business 143,145 - 143,145 189,922 - 189,922 Home Equity 6,945 164 7,109 20,595 - 20,595 Consumer 91,662 29,753 121,415 19,485 32,394 51,879 Total - Substandard 4,890,030 730,513 5,620,543 5,116,769 1,597,838 6,714,607 Rating - Doubtful - - - - - - Rating - Loss - - - - - - TOTAL LOANS $ 267,867,262 $ 100,358,458 $ 368,225,720 $ 277,250,109 $ 111,971,130 $ 389,221,239
Outstanding Commitments And Unused Lines Of Credit [Table Text Block]	December 31, March 31, Outstanding Commitment and Used Lines of Credit 2018 2018 Unused commercial lines of credit $ 13,004,510 $ 9,187,810 Unused home equity lines of credit 23,263,860 22,560,376 Unused consumer lines of credit 26,770 29,331 Residential construction loan commitments 6,934,369 4,234,076 Commercial construction loan commitments 2,678,900 8,968,416 Home equity loan commitments 200,000 389,600 Commercial loan commitments 3,671,000 5,125,000 Standby letter of credit 766,783 250,224

Note 6 - Goodwill and Other I_2

Note 6 - Goodwill and Other Intangible Asset (Tables)	9 Months Ended
Note 6 - Goodwill and Other Intangible Asset (Tables)	Dec. 31, 2018
Notes Tables
Schedule of Intangible Assets and Goodwill [Table Text Block]	Core deposit Goodwill intangible Balance April 1, 2017 $ 8,563,530 $ 739,298 Amortization - (94,548 ) Balance December 31, 2017 8,563,530 644,750 Core deposit Goodwill intangible Balance April 1, 2018 $ 8,563,530 $ 613,234 Amortization - (94,549 ) Balance December 31, 2018 $ 8,563,530 $ 518,685
Finite-lived Intangible Assets Amortization Expense [Table Text Block]	Year ending March 31, Amount 2019 31,519 2020 123,737 2021 98,070 2022 98,070 2023 98,070 2024 64,177 2025 5,042 $ 518,685

Note 7 - Derivative - Interes_2

Note 7 - Derivative - Interest Rate Swap Agreement (Tables)	9 Months Ended
Note 7 - Derivative - Interest Rate Swap Agreement (Tables)	Dec. 31, 2018
Notes Tables
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	December 31, 2018 March 31, 2018 Notional Notional Amount Fair Value Amount Fair Value Included in assets: Interest rate swaps related to FHLB Advances $ 11,550,000 $ 123,118 $ 11,550,000 $ 217,464
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Three Month and Period Ended December 31, 2018 Three Month and Period Ended December 31, 2017 Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Interest Rate Contract $ (287,116 ) $ - $ (1,996 ) $ 122,388 $ - $ (5,445 ) Nine Month and Period Ended December 31, 2018 Nine Month and Period Ended December 31, 2017 Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Amount of Gain (Loss) Recognized in OCI (Effective Portion) Amount of Gain (Loss) Reclassified from OCI to Interest Income Amount of Gain (Loss) Recognized in Other Noninterest Revenue (Ineffective Portion) Interest Rate Contract $ (93,271 ) $ - $ (1,075 ) $ 22,784 $ - $ (9,124 )
Fair Value Hedging [Member]
Notes Tables
Schedule of Derivative Instruments [Table Text Block]	December 31, 2018 March 31, 2018 Notional Amount Principal Amount Fair Value Notional Amount Principal Amount Fair Value Included in Loans and Leases: Commercial real estate loan $ - $ 3,027,702 $ 2,984,595 $ - $ 3,091,892 $ 3,022,744 Included in Other Assets: Interest Rate Swap $ 3,027,702 $ - $ 43,107 $ 3,091,892 - $ 69,148
Cash Flow Hedging [Member]
Notes Tables
Schedule of Derivative Instruments [Table Text Block]	Notional Effective Pay Fixed Receive Interest Rate Swap Amount Start Date Maturity Date Rate Floating Rate FHLB Advance Swap 1 $ 1,850,000 March 9, 2017 March 9, 2022 2.24 % 3-Month LIBOR FHLB Advance Swap 2 1,850,000 March 9, 2017 March 9, 2024 2.41 % 3-Month LIBOR FHLB Advance Swap 3 1,850,000 March 9, 2017 March 9, 2027 2.57 % 3-Month LIBOR FHLB Advance Swap 4 2,000,000 March 29, 2017 March 29, 2022 2.08 % 3-Month LIBOR FHLB Advance Swap 5 2,000,000 March 29, 2017 March 29, 2024 2.24 % 3-Month LIBOR FHLB Advance Swap 6 2,000,000 March 29, 2017 March 29, 2027 2.40 % 3-Month LIBOR Total Notional Amount $ 11,550,000

Note 8 - Deposits (Tables)

Note 8 - Deposits (Tables)	9 Months Ended
Note 8 - Deposits (Tables)	Dec. 31, 2018
Notes Tables
Summary of Deposits [Table Text Block]	December 31, 2018 March 31, 2018 Amount % of Total Amount % of Total Savings $ 41,548,268 10.8 % $ 42,499,381 10.6 % Noninterest-bearing checking 27,365,942 7.1 % 29,557,943 7.3 % Interest-bearing checking 28,478,231 7.4 % 27,219,286 6.7 % Money market accounts 48,128,831 12.5 % 58,466,228 14.4 % Time deposits 238,448,636 62.1 % 246,988,613 61.0 % $ 383,969,908 100.0 % $ 404,731,451 100.0 % Premium on deposits asssumed 201,034 411,524 Total deposits $ 384,170,942 $ 405,142,975

Note 9 - Lines of Credit and _2

Note 9 - Lines of Credit and Federal Home Loan Bank Advances (Tables)	9 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Long-term Debt Instruments [Table Text Block]	December 31, 2018 March 31, 2018 Amount Rate Maturity Date Amount Rate Maturity Date FHLB advance (1) $ 5,550,000 2.57 % 3/11/2019 $ 5,550,000 1.84 % 6/11/2018 FHLB advance (2) 6,000,000 2.58 % 3/29/2019 6,000,000 1.90 % 6/29/2018 FHLB advance 3,000,000 2.71 % 8/26/2019 1,000,000 2.60 % 7/2/2018 FHLB advance 3,000,000 1.59 % 8/26/2019 1,000,000 3.05 % 7/3/2018 FHLB advance 1,500,000 1.95 % 11/25/2019 5,000,000 3.94 % 7/23/2018 FHLB advance 3,000,000 2.31 % 2/3/2020 1,000,000 1.74 % 7/31/2018 FHLB advance 1,000,000 2.86 % 8/4/2020 1,000,000 1.40 % 8/21/2018 FHLB advance 2,000,000 2.56 % 8/27/2020 4,000,000 1.94 % 8/27/2018 FHLB advance 1,000,000 2.15 % 11/30/2020 3,000,000 1.41 % 8/27/2018 FHLB advance 2,000,000 2.28 % 12/28/2020 5,000,000 3.38 % 9/19/2018 FHLB advance 2,000,000 2.49 % 2/1/2021 1,000,000 2.60 % 10/2/2018 FHLB advance 3,000,000 2.93 % 7/26/2021 1,000,000 1.95 % 12/31/2018 FHLB advance 2,000,000 3.01 % 8/4/2021 3,000,000 1.38 % 7/31/2019 FHLB advance 1,000,000 2.88 % 8/23/2021 3,000,000 1.96 % 8/26/2019 FHLB advance 3,000,000 1.48 % 8/25/2021 3,000,000 1.59 % 8/26/2019 FHLB advance 2,000,000 2.68 % 8/27/2021 3,000,000 1.42 % 8/26/2019 FHLB advance 3,000,000 2.79 % 8/29/2022 1,500,000 1.95 % 11/25/2019 FHLB advance 2,000,000 3.14 % 9/19/2022 1,500,000 1.78 % 11/27/2019 FHLB advance 3,000,000 2.70 % 8/28/2023 3,000,000 2.31 % 2/3/2020 FHLB advance 2,000,000 3.20 % 9/19/2023 1,000,000 2.15 % 11/30/2020 FHLB advance - - - 2,000,000 2.28 % 12/28/2020 FHLB advance - - - 2,000,000 2.49 % 2/1/2021 FHLB advance - - - 3,000,000 1.48 % 8/25/2021 51,050,000 60,550,000 Premium on FHLB advances assumed - 122,140 Total borrowings $ 51,050,000 $ 60,672,140

Note 10 - Regulatory Capital _2

Note 10 - Regulatory Capital Ratios (Tables)	9 Months Ended
Note 10 - Regulatory Capital Ratios (Tables)	Dec. 31, 2018
Notes Tables
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	Minimum Capital Minimum Capital To be well Actual Required - Basel III Required - Basel III capitalized (1) Phase-In Schedule Fully Phased-In Amount Ratio Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) December 31, 2018 Common equity tier 1 capital (to risk-weighted assets) Hamilton Bank $ 43,688 12.55 % $ 22,186 6.375 % $ 24,361 7.00 % $ 22,621 6.50 % Hamilton Bancorp 49,329 14.12 % 22,277 6.375 % 24,461 7.00 % 22,714 6.50 % Total risk-based capital (to risk-weighted assets) Hamilton Bank 46,776 13.44 % 34,366 9.875 % 36,541 10.50 % 34,801 10.00 % Hamilton Bancorp 52,417 15.00 % 34,508 9.875 % 36,692 10.50 % 34,945 10.00 % Tier 1 capital (to risk-weighted assets) Hamilton Bank 43,688 12.55 % 27,406 7.875 % 29,581 8.50 % 27,841 8.00 % Hamilton Bancorp 49,329 14.12 % 27,519 7.875 % 27,703 8.50 % 27,956 8.00 % Tier 1 capital (to adjusted total assets) Hamilton Bank 43,688 8.91 % 19,619 4.000 % 19,619 4.00 % 24,523 5.00 % Hamilton Bancorp 49,329 10.00 % 19,732 4.000 % 19,732 4.00 % 24,665 5.00 % March 31, 2018 Common equity tier 1 capital (to risk-weighted assets) Hamilton Bank $ 39,126 10.61 % $ 23,498 6.375 % $ 25,802 7.00 % $ 23,959 6.50 % Hamilton Bancorp 47,308 12.79 % 23,582 6.375 % 25,894 7.00 % 24,044 6.50 % Total risk-based capital (to risk-weighted assets) Hamilton Bank 41,998 11.39 % 36,399 9.875 % 38,703 10.50 % 36,860 10.00 % Hamilton Bancorp 50,180 13.57 % 36,529 9.875 % 38,841 10.50 % 36,992 10.00 % Tier 1 capital (to risk-weighted assets) Hamilton Bank 39,126 10.61 % 29,027 7.875 % 31,331 8.50 % 29,488 8.00 % Hamilton Bancorp 47,308 12.79 % 29,131 7.875 % 31,443 8.50 % 29,593 8.00 % Tier 1 capital (to adjusted total assets) Hamilton Bank 39,126 7.64 % 20,497 4.000 % 20,497 4.00 % 25,621 5.00 % Hamilton Bancorp 47,308 9.15 % 20,674 4.000 % 20,674 4.00 % 25,843 5.00 % (1) - Under prompt corrective action

Note 11 - Stock Based Compens_2

Note 11 - Stock Based Compensation (Tables)	9 Months Ended
Note 11 - Stock Based Compensation (Tables)	Dec. 31, 2018
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Grant Date Number of Options Granted Risk Free Interest Rate Expected Term (in years) Expected Stock Price Volatility Dividend Yield Fair Value of Options Granted February 3, 2014 225,150 2.07 % 7.0 27.30 % 0.00 % $ 4.65 November 1, 2016 19,000 1.61 % 7.0 27.17 % 0.00 % $ 4.35 February 3, 2017 3,700 2.27 % 7.0 27.26 % 0.00 % $ 5.18 April 1, 2018 20,354 2.67 % 7.0 19.61 % 0.00 % $ 4.05
Share-based Compensation, Stock Options, Activity [Table Text Block]	December 31, 2018: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Outstanding at April 1, 2018 242,350 $ 13.84 6.1 Granted 20,354 14.25 9.3 Exercised - - - Forfeited, exchanged or expired - - - Outstanding at December 31, 2018 262,704 $ 13.87 5.6 Vested at December 31, 2018 184,060 $ 13.84 5.2 March 31, 2018: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Outstanding at April 1, 2017 242,350 $ 13.84 7.1 Granted - - - Exercised - - - Forfeited, exchanged or expired - - - Outstanding at March 31, 2018 242,350 $ 13.84 6.1 Vested at March 31, 2018 180,260 $ 13.84 5.8
Schedule of Nonvested Share Activity [Table Text Block]	Weighted-Average December 31, 2018: Shares Fair Value Nonvested shares at April 1, 2018 19,440 $ 13.74 Granted 8,801 14.25 Vested (380 ) 13.61 Forfeited - - Nonvested shares at December 31, 2018 27,861 $ 13.90 Fair Value of shares vested at December 31, 2018 $ 901,276 Weighted-Average March 31, 2018: Shares Fair Value Nonvested shares at April 1, 2017 36,220 $ 13.76 Granted - - Vested (16,780 ) 13.78 Forfeited - - Nonvested shares at March 31, 2018 19,440 $ 13.74 Fair Value of shares vested at March 31, 2018 $ 918,555

Note 12 - Fair Value Measurem_2

Note 12 - Fair Value Measurements (Tables)	9 Months Ended
Note 12 - Fair Value Measurements (Tables)	Dec. 31, 2018
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	Level 1 Level 2 Level 3 December 31, 2018 inputs inputs inputs Total U.S. government agencies $ - $ 727,336 $ - $ 727,336 Municipal bonds - 11,641,229 - 11,641,229 Corporate bonds - 1,900,504 1,900,504 Mortgage-backed securities - 51,308,786 - 51,308,786 Total investment securities available for sale $ - $ 63,677,351 $ 1,900,504 $ 65,577,855 Level 1 Level 2 Level 3 March 31, 2018 inputs inputs inputs Total U.S. government agencies $ - $ 2,718,649 $ - $ 2,718,649 Municipal bonds - 11,705,991 - 11,705,991 Corporate bonds - 1,954,076 1,954,076 Mortgage-backed securities - 59,025,404 16 59,025,420 Total investment securities available for sale $ - $ 73,450,044 $ 1,954,092 $ 75,404,136
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	Level 1 Level 2 Level 3 December 31, 2018 inputs inputs inputs Total Loans - Commercial real estate loan $ - $ 2,984,595 $ - $ 2,984,595 Derivative - Interest rate swap designated as fair value hedge - 43,107 - 43,107 Derivatives - Interest rate swaps designated as cash flow hedge - 123,118 - 123,118 Level 1 Level 2 Level 3 March 31, 2018 inputs inputs inputs Total Loans - Commercial real estate loan $ - $ 3,022,744 $ - $ 3,022,744 Derivative - Interest rate swap designated as fair value hedge - 69,148 - 69,148 Derivatives - Interest rate swaps designated as cash flow hedge - 217,464 - 217,464
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	Valuation Unobservable Range of Description Fair Value Methodology Inputs Inputs Investment securities $ 1,900,504 3rd party valuation Discount to reflect current market conditions 0.00% - 10.00% Valuation Unobservable Range of Description Fair Value Methodology Inputs Inputs Impaired loans, net of allowance $ 7,289,458 Appraised value Discount to reflect current market conditions 0.00% - 25.00% Discounted cash flows Discount rates 2.63% - 7.25% Foreclosed real estate $ 457,778 Appraised value Discount to reflect current market conditions 0.00% - 25.00%
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Nine Months Fiscal Year Ended Ended December 31, 2018 March 31, 2018 Balance, beginning of year $ 1,954,092 $ 1,930,786 Transfers in: Corporate bonds - 1,954,076 Mortgage-backed securities - 16 Municipal bonds - - Transfers out: Corporate bonds - - Mortgage-backed securities 16 2,473 Municipal bonds - 1,928,313 Change in valuation (53,572 ) - Balance, end of year $ 1,900,504 $ 1,954,092
Fair Value Measurements, Nonrecurring [Table Text Block]	Level 1 Level 2 Level 3 December 31, 2018 inputs inputs inputs Total Impaired loans $ - $ - $ 7,289,458 $ 7,289,458 Foreclosed real estate - - 457,778 457,778 Level 1 Level 2 Level 3 March 31, 2018 inputs inputs inputs Total Impaired loans $ - $ - $ 8,454,083 $ 8,454,083 Foreclosed real estate - - 457,778 457,778
Summar yOf Beginning And Ending Balance Of Foreclosed Real Estate [Table Text Block]	Nine Months Fiscal Year Ended Ended December 31, 2018 March 31, 2018 Balance at beginning of period $ 457,778 $ 503,094 Transfer to foreclosed real estate 150,052 23,834 Write-down of foreclosed real estate - (31,955 ) Proceeds from sale of foreclosed real estate (145,820 ) (35,896 ) Loss on sale of foreclosed real estate (4,232 ) (1,299 ) Balance at end of period $ 457,778 $ 457,778
Fair Value, by Balance Sheet Grouping [Table Text Block]	December 31, 2018 March 31, 2018 Carrying Fair Carrying Fair amount value amount value Financial assets Level 1 inputs Cash and cash equivalents $ 26,547,840 $ 26,547,840 $ 23,368,415 $ 23,368,415 Level 2 inputs Federal Home Loan Bank stock 2,676,200 2,676,200 3,122,400 3,122,400 Bank-owned life insurance 17,799,920 17,799,920 17,455,850 17,455,850 Level 3 inputs Certificates of deposit held as investment 499,121 485,928 499,189 492,751 Loans receivable, net of unearned income 366,428,914 352,433,858 387,328,993 385,818,260 Financial liabilities Level 2 inputs Deposits 384,170,942 385,031,487 405,142,975 405,026,957 Advance payments by borrowers for taxes and insurance 1,059,677 1,059,677 1,962,665 1,962,665 Borrowings 51,050,000 50,394,636 60,672,140 60,494,922

Note 1 - Nature of Operations_2

Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details Textual)	May 13, 2016USD ($)$ / shares	Sep. 11, 2015USD ($)	Oct. 10, 2012USD ($)$ / sharesshares	Dec. 31, 2018USD ($)shares	Jun. 30, 2019USD ($)$ / sharesshares	Mar. 31, 2018shares	Apr. 15, 2015$ / shares
Common Stock, Shares, Issued, Total \| shares			3,703,000	3,416,414		3,407,613
Share Price \| $ / shares			$ 10
Proceeds from Issuance of Common Stock			$ 35,580,000
Noninterest Expense Offering Cost			$ 1,450,000
Employee Stock Option Plan, Subscribed Percentage			8.00%
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares \| shares			296,240
Number of Branches				7
Allowance for Loan and Lease Losses, Loans Acquired				$ 294,000
Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life				8 years
Merger With Orrstown Financial Services [Member] \| Scenario, Forecast [Member]
Merger Termination Fee Amount					$ 2,200,000
Merger With Orrstown Financial Services [Member] \| Orrstown Financial Services, Inc. [Member] \| Scenario, Forecast [Member]
Business Acquisition, Share Price \| $ / shares					$ 4.10
Business Acquisition, Equity Interest Issued or Issuable, Shares Available for Issuance Upon Conversion of Acquiree Stock \| shares					0.54
Fraternity Community Bancorp, Inc. [Member]
Business Acquisition, Share Price \| $ / shares	$ 19.25
Payments to Acquire Businesses, Gross	$ 25,700,000
Fairmount Bancorp, Inc. [Member]
Business Acquisition, Share Price \| $ / shares							$ 30
Business Combination, Consideration Transferred, Total		$ 15,400,000

Note 3 - Earnings Per Share - B

Note 3 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net income	$ (124,683)	$ (1,927,190)	$ 1,419,288	$ (1,124,060)
Weighted average common shares outstanding - basic (in shares)	3,209,207	3,189,056	3,209,100	3,188,949
Weighted average common shares outstanding - diluted (in shares)	3,209,207	3,189,056	3,209,895	3,188,949
Income per common share - basic and diluted (in dollars per share)	$ (0.04)	$ (0.60)	$ 0.44	$ (0.35)
Anti-dilutive shares (in shares)	184,060	118,525	183,265	118,525

Note 4 - Investment Securitie_3

Note 4 - Investment Securities Available for Sale (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Proceeds from Sale of Debt Securities, Available-for-sale	$ 0	$ 7,364,939	$ 0	$ 11,608,699
Gain on Sale of Investments		33,747		57,099
Loss on Sale of Investments		$ 46,483		$ 59,455
Debt Securities, Available-for-sale, Amortized Cost, Total	67,935,704		67,935,704		$ 78,267,079
Debt Securities, Available-for-sale, Total	65,577,855		65,577,855		75,404,136
Pledged Financial Instruments, Not Separately Reported, Securities, Total	744,186		744,186		744,186
Collateral Pledged [Member]
Debt Securities, Available-for-sale, Restricted	727,336		727,336		$ 723,023
Fraternity Community Bancorp, Inc. [Member] \| Mortgage-backed Securities, Issued by Private Enterprises [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total	37,687		37,687
Debt Securities, Available-for-sale, Total	$ 38,032		$ 38,032

Note 4 - Investment Securitie_4

Note 4 - Investment Securities Available for Sale - Amortized Cost and Fair Value of Securities (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Securities available for sale, amortized cost	$ 67,935,704	$ 78,267,079
Securities available for sale, gross unrealized gains	11,438	12,993
Securities available for sale, gross unrealized losses	2,369,287	2,875,936
Investment securities available for sale, at fair value	65,577,855	75,404,136
US Government Agencies Debt Securities [Member]
Securities available for sale, amortized cost	744,186	2,753,346
Securities available for sale, gross unrealized gains
Securities available for sale, gross unrealized losses	16,850	34,697
Investment securities available for sale, at fair value	727,336	2,718,649
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, amortized cost	12,347,163	12,435,068
Securities available for sale, gross unrealized gains
Securities available for sale, gross unrealized losses	705,934	729,077
Investment securities available for sale, at fair value	11,641,229	11,705,991
Corporate Debt Securities [Member]
Securities available for sale, amortized cost	2,000,000	2,000,000
Securities available for sale, gross unrealized gains
Securities available for sale, gross unrealized losses	99,496	45,924
Investment securities available for sale, at fair value	1,900,504	1,954,076
Collateralized Mortgage Backed Securities [Member]
Securities available for sale, amortized cost	52,844,355	61,078,665
Securities available for sale, gross unrealized gains	11,438	12,993
Securities available for sale, gross unrealized losses	1,547,007	2,066,238
Investment securities available for sale, at fair value	$ 51,308,786	$ 59,025,420

Note 4 - Investment Securitie_5

Note 4 - Investment Securities Available for Sale - Debt Securities By Contractual Maturity (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Amortized cost, securities available for sale, maturing within one year		$ 2,009,160
Fair value, securities available for sale, maturing within one year		1,995,625
Amortized cost, securities available for sale, maturing over one to five years	1,227,258	1,231,928
Fair value, securities available for sale, maturing over one to five years	1,197,309	1,196,368
Amortized cost, securities available for sale maturing over five to ten years	4,665,976	3,578,827
Fair value, securities available for sale, maturing over five to ten years	4,447,904	3,500,641
Amortized cost, securities available for sale, maturing over ten years	9,198,115	10,368,499
Fair value, securities available for sale, maturing over ten years	8,623,856	9,686,082
Amortized cost of mortgage-backed securities, in monthly installments	52,844,355	61,078,665
Fair value of mortgage-backed securities, in monthly installments	51,308,786	59,025,420
Amortized cost of securities available for sale	67,935,704	78,267,079
Fair value of securities available for sale	$ 65,577,855	$ 75,404,136

Note 4 - Investment Securitie_6

Note 4 - Investment Securities Available for Sale - Securities In a Continuous Unrealized Loss Position (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Securities available for sale, less than 12 months, gross unrealized losses	$ 56,462	$ 405,150
Securities available for sale, less than 12 months, fair value	1,801,231	16,603,971
Securities available for sale, 12 months or longer, gross unrealized losses	2,312,825	2,470,786
Securities available for sale, 12 months or longer, fair value	61,056,793	56,340,528
Securities available for sale, total gross unrealized losses	2,369,287	2,875,936
Securities available for sale, total fair value	62,858,024	72,944,499
US Government Agencies Debt Securities [Member]
Securities available for sale, less than 12 months, gross unrealized losses		21,163
Securities available for sale, less than 12 months, fair value		723,023
Securities available for sale, 12 months or longer, gross unrealized losses	16,850	13,534
Securities available for sale, 12 months or longer, fair value	727,336	1,995,625
Securities available for sale, total gross unrealized losses	16,850	34,697
Securities available for sale, total fair value	727,336	2,718,648
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, less than 12 months, gross unrealized losses
Securities available for sale, less than 12 months, fair value
Securities available for sale, 12 months or longer, gross unrealized losses	705,934	729,077
Securities available for sale, 12 months or longer, fair value	11,641,229	11,705,991
Securities available for sale, total gross unrealized losses	705,934	729,077
Securities available for sale, total fair value	11,641,229	11,705,991
Corporate Debt Securities [Member]
Securities available for sale, less than 12 months, gross unrealized losses
Securities available for sale, less than 12 months, fair value
Securities available for sale, 12 months or longer, gross unrealized losses	99,496	45,924
Securities available for sale, 12 months or longer, fair value	1,900,504	1,954,076
Securities available for sale, total gross unrealized losses	99,496	45,924
Securities available for sale, total fair value	1,900,504	1,954,076
Collateralized Mortgage Backed Securities [Member]
Securities available for sale, less than 12 months, gross unrealized losses	56,462	383,987
Securities available for sale, less than 12 months, fair value	1,801,231	15,880,948
Securities available for sale, 12 months or longer, gross unrealized losses	1,490,545	1,682,251
Securities available for sale, 12 months or longer, fair value	46,787,724	40,684,836
Securities available for sale, total gross unrealized losses	1,547,007	2,066,238
Securities available for sale, total fair value	$ 48,588,955	$ 56,565,784

Note 5 - Loans Receivable and_3

Note 5 - Loans Receivable and Allowance for Loan Losses (Details Textual)	3 Months Ended		9 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net	$ 374,761	$ 1,043,093	$ 374,761	$ 1,043,093	$ 1,021,424	$ 1,341,935
Limit Over Which Private Mortgage Insurance is Required	80.00%		80.00%
Financing Receivable, Modifications, Number of Contracts	0
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 0		$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Ending Balance	$ 57,000		$ 57,000		50,000
Doubtful [Member]
Loans Receivable, Net, Total	$ 0		$ 0		0
Minimum [Member]
Maximum Percentage of Value of Property Against Lending	75.00%		75.00%
Maximum [Member]
Maximum Percentage of Value of Property Against Lending	95.00%		95.00%
Real Estate Loans [Member] \| One to four family, Residential [Member]
Financing Receivable, Modifications, Number of Contracts			1	3
Real Estate Loans [Member] \| One to four family, Residential [Member] \| Legacy Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net					19,200,000
Commercial Portfolio Segment [Member] \| Commercial Lease Loans Purchased [Member] \| Legacy Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net					15,500,000
Commercial Portfolio Segment [Member] \| Guaranteed SBA Purchased Loans [Member] \| Legacy Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net					3,200,000
Commercial Portfolio Segment [Member] \| Recreational Vehicle Loans [Member] \| Legacy Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net					$ 19,900,000

Note 5 - Loans Receivable and_4

Note 5 - Loans Receivable and Allowance for Loan Losses - Loans Receivable Excluding Loans Held for Sale (Details) - USD ($)		Dec. 31, 2018		Mar. 31, 2018		Dec. 31, 2017
Loans		$ 368,225,720		$ 389,221,239
Percentage of loans		100.00%		100.00%
Net deferred loan origination fees and costs		$ (178,056)		$ (212,746)
Loan premium (discount)		1,408,952		1,412,392
Net loans		369,456,616		390,420,885
Financial Asset Originated [Member]
Loans		267,867,262	[1]	277,250,109	[1]	$ 272,324,778
Net deferred loan origination fees and costs	[1]	(178,056)		(212,746)
Loan premium (discount)	[1]	1,708,908		1,922,428
Net loans	[1]	269,398,114		278,959,791
Financial Asset Acquired [Member]
Loans		100,358,458		111,971,130		115,515,899
Net deferred loan origination fees and costs
Loan premium (discount)		(299,956)		(510,036)
Net loans		100,058,502		111,461,094
Real Estate Loans [Member]
Loans		$ 294,195,991		$ 309,465,974
Percentage of loans		80.00%		80.00%
Real Estate Loans [Member] \| Financial Asset Originated [Member]
Loans	[1]	$ 201,184,464		$ 206,141,595
Real Estate Loans [Member] \| Financial Asset Acquired [Member]
Loans		93,011,527		103,324,379
Real Estate Loans [Member] \| One to four family, Residential [Member]
Loans	[2]	$ 149,373,141		$ 157,997,250
Percentage of loans	[2]	40.00%		41.00%
Real Estate Loans [Member] \| One to four family, Residential [Member] \| Financial Asset Originated [Member]
Loans	[1],[2]	$ 83,117,881		$ 85,248,184
Real Estate Loans [Member] \| One to four family, Residential [Member] \| Financial Asset Acquired [Member]
Loans	[2]	66,255,260		72,749,066
Real Estate Loans [Member] \| One to four family, Residential construction [Member]
Loans		$ 3,430,203		$ 5,450,827
Percentage of loans		1.00%		1.00%
Real Estate Loans [Member] \| One to four family, Residential construction [Member] \| Financial Asset Originated [Member]
Loans	[1]	$ 3,430,203		$ 5,450,827
Real Estate Loans [Member] \| One to four family, Residential construction [Member] \| Financial Asset Acquired [Member]
Loans
Real Estate Loans [Member] \| One to four family, Investor [Member]
Loans	[3]	$ 23,744,547		$ 26,735,840
Percentage of loans	[3]	6.00%		7.00%
Real Estate Loans [Member] \| One to four family, Investor [Member] \| Financial Asset Originated [Member]
Loans	[1],[3]	$ 7,337,281		$ 9,275,031
Real Estate Loans [Member] \| One to four family, Investor [Member] \| Financial Asset Acquired [Member]
Loans	[3]	16,407,266		17,460,809
Real Estate Loans [Member] \| Commercial [Member]
Loans		$ 115,045,570		$ 112,166,254
Percentage of loans		31.00%		29.00%
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Originated [Member]
Loans		$ 105,755,786	[1]	$ 100,403,769	[1]	100,857,452
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Acquired [Member]
Loans		9,289,784		11,762,485		12,160,844
Real Estate Loans [Member] \| Commercial Construction [Member]
Loans		$ 2,602,530		$ 7,115,803
Percentage of loans		1.00%		2.00%
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Originated [Member]
Loans		$ 1,543,313	[1]	$ 5,763,784	[1]	3,995,441
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Acquired [Member]
Loans		1,059,217		1,352,019		856,970
Commercial Portfolio Segment [Member]
Loans	[4]	$ 36,983,002		$ 40,143,965
Percentage of loans	[4]	10.00%		10.00%
Commercial Portfolio Segment [Member] \| Financial Asset Originated [Member]
Loans		$ 35,276,493	[1],[4]	$ 38,302,739	[1],[4]	38,988,229
Commercial Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Loans		1,706,509	[4]	1,841,226	[4]	1,928,232
Home Equity Loans [Member]
Loans		$ 20,018,119		$ 19,995,789
Percentage of loans		5.00%		5.00%
Home Equity Loans [Member] \| Financial Asset Originated [Member]
Loans		$ 15,077,068	[1]	$ 13,956,327	[1]	13,802,091
Home Equity Loans [Member] \| Financial Asset Acquired [Member]
Loans		4,941,051		6,039,462		6,874,136
Consumer Portfolio Segment [Member]
Loans	[5]	$ 17,028,608		$ 19,615,511
Percentage of loans	[5]	5.00%		5.00%
Consumer Portfolio Segment [Member] \| Financial Asset Originated [Member]
Loans		$ 16,329,237	[1],[5]	$ 18,849,448	[1],[5]	20,075,548
Consumer Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Loans		$ 699,372		$ 766,063	[5]	$ 785,100

[1]	As a result of the acquisition of Fraternity Community Bancorp, Inc., the parent company of Fraternity Federal Savings and Loan, in May 2016 and Fairmount Bancorp, Inc., the parent company of Fairmount Bank, in September 2015, we have segmented the portfolio into two components, loans originated by Hamilton Bank "Legacy" and loans acquired from Fraternity Community Bancorp, Inc. and Fairmount Bancorp, Inc. "Acquired".
[2]	"Legacy" one-to four-family residential real estate loans at March 31, 2018 includes $19.2 million of various loan pools purchased in the second half of fiscal 2018.
[3]	"Investor" loans are residential mortgage loans secured by non-owner occupied one-to four-family properties.
[4]	"Legacy" commercial business loans at March 31, 2018 includes a $15.5 million pool of commercial lease loans purchased in June 2017 and $3.2 million in guaranteed SBA loans purchased in second half of fiscal 2018.
[5]	"Legacy" consumer loans at March 31, 2018 includes $19.9 million of purchased loan pools consisting of recreational vehicles that were purchased in August and December 2017.

Note 5 - Loans Receivable and_5

Note 5 - Loans Receivable and Allowance for Loan Losses - Activity in Allowance for Loan Losses (Details) - USD ($)		3 Months Ended			9 Months Ended
		Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2018		Dec. 31, 2017	Mar. 31, 2018
Beginning balance		$ 3,030,929		$ 2,470,991	$ 2,821,903		$ 2,194,815
Charge-offs		(166,638)		(211,596)	(297,305)		(236,111)
Recoveries		86,815		5,142	124,012		25,833
Provision for credit losses		80,000		345,000	382,496		625,000
Ending balance		3,031,106		2,609,537	3,031,106		2,609,537
Loans		368,225,720			368,225,720			$ 389,221,239
Financial Asset Originated [Member]
Individually evaluated for impairment, allowance		253,811		272,707	253,811		272,707
Collectively evaluated for impairment, allowance		2,337,617		2,336,830	2,337,617		2,336,830
Individually evaluated for impairment		6,785,712		7,245,899	6,785,712		7,245,899
Collectively evaluated for impairment		261,081,550		265,078,879	261,081,550		265,078,879
Loans		267,867,262	[1]	272,324,778	267,867,262	[1]	272,324,778	277,250,109	[1]
Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		439,678			439,678
Individually evaluated for impairment		757,557		1,896,849	757,557		1,896,849
Collectively evaluated for impairment		99,600,901		113,619,050	99,600,901		113,619,050
Loans		100,358,458		115,515,899	100,358,458		115,515,899	111,971,130
Real Estate Loans [Member]
Loans		294,195,991			294,195,991			309,465,974
Real Estate Loans [Member] \| Financial Asset Originated [Member]
Loans	[1]	201,184,464			201,184,464			206,141,595
Real Estate Loans [Member] \| Financial Asset Acquired [Member]
Loans		93,011,527			93,011,527			103,324,379
Real Estate Loans [Member] \| Residential [Member]
Beginning balance		665,676		528,288	608,723		553,539
Charge-offs					(13,769)		(8,907)
Recoveries		41,059		3,937	43,301		3,937
Provision for credit losses		(24,321)		35,875	44,159		19,531
Ending balance		682,414		568,100	682,414		568,100
Real Estate Loans [Member] \| Residential [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance		253,811		272,707	253,811		272,707
Collectively evaluated for impairment, allowance		276,937		295,393	276,937		295,393
Individually evaluated for impairment		1,773,176		1,697,585	1,773,176		1,697,585
Collectively evaluated for impairment		84,774,908		85,532,435	84,774,908		85,532,435
Loans		86,548,084		87,230,020	86,548,084		87,230,020
Real Estate Loans [Member] \| Residential [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		151,666			151,666
Individually evaluated for impairment		440,242		1,061,049	440,242		1,061,049
Collectively evaluated for impairment		65,815,018		73,640,662	65,815,018		73,640,662
Loans		66,255,260		74,701,711	66,255,260		74,701,711
Real Estate Loans [Member] \| Investor Loans [Member]
Beginning balance		314,571		52,255	51,690		35,275
Charge-offs		(32,909)		(111,360)	(41,022)		(126,482)
Recoveries		33,609			33,675		18,129
Provision for credit losses		(36,632)		103,790	234,296		117,763
Ending balance		278,639		44,685	278,639		44,685
Real Estate Loans [Member] \| Investor Loans [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		50,593		44,685	50,593		44,685
Individually evaluated for impairment		31,752		121,514	31,752		121,514
Collectively evaluated for impairment		7,305,529		7,254,483	7,305,529		7,254,483
Loans		7,337,281		7,375,997	7,337,281		7,375,997
Real Estate Loans [Member] \| Investor Loans [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		228,046			228,046
Individually evaluated for impairment		261,659		579,172	261,659		579,172
Collectively evaluated for impairment		16,145,606		17,629,734	16,145,606		17,629,734
Loans		16,407,265		18,208,906	16,407,265		18,208,906
Real Estate Loans [Member] \| Commercial [Member]
Beginning balance		1,312,441		1,360,433	1,253,383		1,375,894
Charge-offs				(100,236)	(31,320)		(100,236)
Recoveries					31,320
Provision for credit losses		(31,557)		148,707	27,501		133,246
Ending balance		1,280,884		1,408,904	1,280,884		1,408,904
Loans		115,045,570			115,045,570			112,166,254
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		1,241,051		1,408,904	1,241,051		1,408,904
Individually evaluated for impairment		4,139,177		4,500,043	4,139,177		4,500,043
Collectively evaluated for impairment		101,616,609		96,357,409	101,616,609		96,357,409
Loans		105,755,786	[1]	100,857,452	105,755,786	[1]	100,857,452	100,403,769	[1]
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		39,833			39,833
Individually evaluated for impairment				199,920			199,920
Collectively evaluated for impairment		9,289,784		11,960,924	9,289,784		11,960,924
Loans		9,289,784		12,160,844	9,289,784		12,160,844	11,762,485
Real Estate Loans [Member] \| Commercial Construction [Member]
Beginning balance		12,390		12,074	33,430		9,031
Charge-offs
Recoveries
Provision for credit losses		(4,090)		11,100	(25,130)		14,143
Ending balance		8,300		23,174	8,300		23,174
Loans		2,602,530			2,602,530			7,115,803
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		7,254		23,174	7,254		23,174
Individually evaluated for impairment
Collectively evaluated for impairment		1,543,313		3,995,441	1,543,313		3,995,441
Loans		1,543,313	[1]	3,995,441	1,543,313	[1]	3,995,441	5,763,784	[1]
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		1,046			1,046
Individually evaluated for impairment
Collectively evaluated for impairment		1,059,217		856,970	1,059,217		856,970
Loans		1,059,217		856,970	1,059,217		856,970	1,352,019
Commercial Portfolio Segment [Member]
Beginning balance		532,611		327,130	673,982		149,461
Charge-offs		(133,729)			(208,729)
Recoveries		10,880		171	10,880		551
Provision for credit losses		160,895		45,987	94,524		223,276
Ending balance		570,657		373,288	570,657		373,288
Loans	[2]	36,983,002			36,983,002			40,143,965
Commercial Portfolio Segment [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		566,217		373,288	566,217		373,288
Individually evaluated for impairment		743,160		905,178	743,160		905,178
Collectively evaluated for impairment		34,533,333		38,083,051	34,533,333		38,083,051
Loans		35,276,493	[1],[2]	38,988,229	35,276,493	[1],[2]	38,988,229	38,302,739	[1],[2]
Commercial Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		4,440			4,440
Individually evaluated for impairment
Collectively evaluated for impairment		1,706,509		1,928,232	1,706,509		1,928,232
Loans		1,706,509	[2]	1,928,232	1,706,509	[2]	1,928,232	1,841,226	[2]
Home Equity Loans [Member]
Beginning balance		72,831		62,570	69,459		70,071
Charge-offs
Recoveries
Provision for credit losses		1,555		619	4,927		(6,882)
Ending balance		74,386		63,189	74,386		63,189
Loans		20,018,119			20,018,119			19,995,789
Home Equity Loans [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		59,952		63,189	59,952		63,189
Individually evaluated for impairment		6,785		21,579	6,785		21,579
Collectively evaluated for impairment		15,070,283		13,780,512	15,070,283		13,780,512
Loans		15,077,068	[1]	13,802,091	15,077,068	[1]	13,802,091	13,956,327	[1]
Home Equity Loans [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		14,434			14,434
Individually evaluated for impairment		164			164
Collectively evaluated for impairment		4,940,887		6,874,136	4,940,887		6,874,136
Loans		4,941,051		6,874,136	4,941,051		6,874,136	6,039,462
Consumer Portfolio Segment [Member]
Beginning balance		98,676		128,241	131,236		1,544
Charge-offs					(2,465)		(486)
Recoveries		1,267		1,034	4,836		3,216
Provision for credit losses		(4,214)		(1,078)	(37,878)		123,923
Ending balance		95,729		128,197	95,729		128,197
Loans	[3]	17,028,608			17,028,608			19,615,511
Consumer Portfolio Segment [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		95,516		128,197	95,516		128,197
Individually evaluated for impairment		91,662			91,662
Collectively evaluated for impairment		16,237,575		20,075,548	16,237,575		20,075,548
Loans		16,329,237	[1],[3]	20,075,548	16,329,237	[1],[3]	20,075,548	18,849,448	[1],[3]
Consumer Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		213			213
Individually evaluated for impairment		55,492		56,708	55,492		56,708
Collectively evaluated for impairment		643,880		728,392	643,880		728,392
Loans		699,372		785,100	699,372		785,100	$ 766,063	[3]
Unallocated Financing Receivables [Member]
Beginning balance		21,733
Charge-offs
Recoveries
Provision for credit losses		18,364			40,097
Ending balance		40,097			40,097
Unallocated Financing Receivables [Member] \| Financial Asset Originated [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance		40,097			40,097
Unallocated Financing Receivables [Member] \| Financial Asset Acquired [Member]
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance

[1]	As a result of the acquisition of Fraternity Community Bancorp, Inc., the parent company of Fraternity Federal Savings and Loan, in May 2016 and Fairmount Bancorp, Inc., the parent company of Fairmount Bank, in September 2015, we have segmented the portfolio into two components, loans originated by Hamilton Bank "Legacy" and loans acquired from Fraternity Community Bancorp, Inc. and Fairmount Bancorp, Inc. "Acquired".
[2]	"Legacy" commercial business loans at March 31, 2018 includes a $15.5 million pool of commercial lease loans purchased in June 2017 and $3.2 million in guaranteed SBA loans purchased in second half of fiscal 2018.
[3]	"Legacy" consumer loans at March 31, 2018 includes $19.9 million of purchased loan pools consisting of recreational vehicles that were purchased in August and December 2017.

Note 5 - Loans Receivable and_6

Note 5 - Loans Receivable and Allowance for Loan Losses - Past Due Loans (Details) - USD ($)		Dec. 31, 2018		Mar. 31, 2018		Dec. 31, 2017
Current		$ 361,746,473		$ 380,780,116
Past due		1,283,570		2,476,716
Nonaccrual loans		5,195,677		5,964,407
Loans		368,225,720		389,221,239
Nonaccrual interest not accrued		280,718		393,818
Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		288,461		1,037,360
Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		659,595		233,115
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due		335,514		1,206,241
Real Estate Loans [Member]
Loans		294,195,991		309,465,974
Real Estate Loans [Member] \| Residential [Member]
Nonaccrual loans		666,140		864,644
Nonaccrual interest not accrued		9,526		61,370
Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		89,508		752,982
Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		193,600		70,291
Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Real Estate Loans [Member] \| Investor Loans [Member]
Nonaccrual loans		160,689		361,821
Nonaccrual interest not accrued		8,556		24,117
Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		29,357
Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due		335,514		1,206,241
Real Estate Loans [Member] \| Commercial [Member]
Nonaccrual loans		4,139,177		4,555,202
Loans		115,045,570		112,166,254
Nonaccrual interest not accrued		252,381		294,619
Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Real Estate Loans [Member] \| Commercial Construction [Member]
Nonaccrual loans
Loans		2,602,530		7,115,803
Nonaccrual interest not accrued
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Commercial Portfolio Segment [Member]
Nonaccrual loans		143,145		165,285
Loans	[1]	36,983,002		40,143,965
Nonaccrual interest not accrued		8,796		12,891
Commercial Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		120,418		135,502
Commercial Portfolio Segment [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		460,762		134,524
Commercial Portfolio Segment [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Home Equity Loans [Member]
Nonaccrual loans		97		12,605
Loans		20,018,119		19,995,789
Nonaccrual interest not accrued				436
Home Equity Loans [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		68
Home Equity Loans [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Home Equity Loans [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Consumer Portfolio Segment [Member]
Nonaccrual loans		86,429		4,850
Loans	[2]	17,028,608		19,615,511
Nonaccrual interest not accrued		1,459		385
Consumer Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		49,110		148,876
Consumer Portfolio Segment [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		5,233		28,300
Consumer Portfolio Segment [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Originated [Member]
Current		262,125,497		270,807,643
Past due		975,652		1,315,929
Nonaccrual loans		4,766,113		5,126,537
Loans		267,867,262	[3]	277,250,109	[3]	$ 272,324,778
Nonaccrual interest not accrued		266,991		325,094
Financial Asset Originated [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		214,795		347,996
Financial Asset Originated [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		538,372		233,115
Financial Asset Originated [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due		222,485		734,818
Financial Asset Originated [Member] \| Real Estate Loans [Member]
Loans	[3]	201,184,464		206,141,595
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Residential [Member]
Nonaccrual loans		365,610		526,584
Loans		86,548,084				87,230,020
Nonaccrual interest not accrued		2,289		8,250
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		71,020		63,618
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		72,377		70,291
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Investor Loans [Member]
Nonaccrual loans		31,752		60,949
Loans		7,337,281				7,375,997
Nonaccrual interest not accrued		2,066		8,513
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due		222,485		734,818
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial [Member]
Nonaccrual loans		4,139,177		4,356,264
Loans		105,755,786	[3]	100,403,769	[3]	100,857,452
Nonaccrual interest not accrued		252,381		294,619
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member]
Nonaccrual loans
Loans		1,543,313	[3]	5,763,784	[3]	3,995,441
Nonaccrual interest not accrued
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Commercial Portfolio Segment [Member]
Nonaccrual loans		143,145		165,285
Loans		35,276,493	[1],[3]	38,302,739	[1],[3]	38,988,229
Nonaccrual interest not accrued		8,796		12,891
Financial Asset Originated [Member] \| Commercial Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		120,418		135,502
Financial Asset Originated [Member] \| Commercial Portfolio Segment [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		460,762		134,524
Financial Asset Originated [Member] \| Commercial Portfolio Segment [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Home Equity Loans [Member]
Nonaccrual loans				12,605
Loans		15,077,068	[3]	13,956,327	[3]	13,802,091
Nonaccrual interest not accrued				436
Financial Asset Originated [Member] \| Home Equity Loans [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Home Equity Loans [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Home Equity Loans [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Originated [Member] \| Consumer Portfolio Segment [Member]
Nonaccrual loans		86,429		4,850
Loans		16,329,237	[2],[3]	18,849,448	[2],[3]	20,075,548
Nonaccrual interest not accrued		1,459		385
Financial Asset Originated [Member] \| Consumer Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		23,357		148,876
Financial Asset Originated [Member] \| Consumer Portfolio Segment [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		5,233		28,300
Financial Asset Originated [Member] \| Consumer Portfolio Segment [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Acquired [Member]
Current		99,620,976		109,972,473
Past due		307,918		1,160,787
Nonaccrual loans		429,564		837,870
Loans		100,358,458		111,971,130		115,515,899
Nonaccrual interest not accrued		13,727		68,724
Financial Asset Acquired [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		73,666		689,364
Financial Asset Acquired [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		121,223
Financial Asset Acquired [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due		113,029		471,423
Financial Asset Acquired [Member] \| Real Estate Loans [Member]
Loans		93,011,527		103,324,379
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Residential [Member]
Nonaccrual loans		300,530		338,060
Loans		66,255,260				74,701,711
Nonaccrual interest not accrued		7,237		53,120
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		18,488		689,364
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due		121,223
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Residential [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Investor Loans [Member]
Nonaccrual loans		128,937		300,872
Loans		16,407,265				18,208,906
Nonaccrual interest not accrued		6,490		15,604
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		29,357
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Investor Loans [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due		113,029		471,423
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial [Member]
Nonaccrual loans				198,938
Loans		9,289,784		11,762,485		12,160,844
Nonaccrual interest not accrued
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member]
Nonaccrual loans
Loans		1,059,217		1,352,019		856,970
Nonaccrual interest not accrued
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Real Estate Loans [Member] \| Commercial Construction [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Commercial Portfolio Segment [Member]
Nonaccrual loans
Loans		1,706,509	[1]	1,841,226	[1]	1,928,232
Nonaccrual interest not accrued
Financial Asset Acquired [Member] \| Commercial Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Commercial Portfolio Segment [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Commercial Portfolio Segment [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Home Equity Loans [Member]
Nonaccrual loans		97
Loans		4,941,051		6,039,462		6,874,136
Nonaccrual interest not accrued
Financial Asset Acquired [Member] \| Home Equity Loans [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		68
Financial Asset Acquired [Member] \| Home Equity Loans [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Home Equity Loans [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Consumer Portfolio Segment [Member]
Nonaccrual loans
Loans		699,372		766,063	[2]	$ 785,100
Nonaccrual interest not accrued
Financial Asset Acquired [Member] \| Consumer Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Past due		25,753
Financial Asset Acquired [Member] \| Consumer Portfolio Segment [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Past due
Financial Asset Acquired [Member] \| Consumer Portfolio Segment [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due

[1]	"Legacy" commercial business loans at March 31, 2018 includes a $15.5 million pool of commercial lease loans purchased in June 2017 and $3.2 million in guaranteed SBA loans purchased in second half of fiscal 2018.
[2]	"Legacy" consumer loans at March 31, 2018 includes $19.9 million of purchased loan pools consisting of recreational vehicles that were purchased in August and December 2017.
[3]	As a result of the acquisition of Fraternity Community Bancorp, Inc., the parent company of Fraternity Federal Savings and Loan, in May 2016 and Fairmount Bancorp, Inc., the parent company of Fairmount Bank, in September 2015, we have segmented the portfolio into two components, loans originated by Hamilton Bank "Legacy" and loans acquired from Fraternity Community Bancorp, Inc. and Fairmount Bancorp, Inc. "Acquired".

Note 5 - Loans Receivable and_7

Note 5 - Loans Receivable and Allowance for Loan Losses - Impaired Loans (Details) - USD ($)		3 Months Ended				9 Months Ended				12 Months Ended
		Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2018		Dec. 31, 2017		Mar. 31, 2018
Related allowance		$ 253,811		$ 272,707		$ 253,811		$ 272,707		$ 266,256	[1]
Unpaid contractual principal balance		10,871,156		12,124,586		10,871,156		12,124,586		12,423,053
Recorded investment		7,543,269		9,142,748		7,543,269		9,142,748		8,720,339
Average recorded investment		7,859,520		9,463,640		7,853,668		9,513,155		9,644,505
Interest income recognized		60,828		48,008		201,938		193,308		250,008
Financial Asset Originated [Member]
Related allowance		253,811		272,707		253,811		272,707		266,256
Unpaid contractual principal balance		9,882,943		9,833,631		9,882,943		9,833,631		10,273,127
Recorded investment		6,785,712		7,245,899		6,785,712		7,245,899		7,094,524
Average recorded investment		7,099,976		7,477,984		7,123,625		7,473,746		7,774,125
Interest income recognized		47,397		37,642		174,450		121,875		171,476
Financial Asset Acquired [Member]
Related allowance			[1]		[1]		[1]		[1]
Unpaid contractual principal balance	[1]	988,213		2,290,955		988,213		2,290,955		2,149,926
Recorded investment	[1]	757,557		1,896,849		757,557		1,896,849		1,625,815
Average recorded investment	[1]	759,544		1,985,656		730,043		2,039,409		1,870,380
Interest income recognized	[1]	13,431		10,366		27,488		71,433		78,532
Real Estate Loans [Member] \| Residential [Member] \| Financial Asset Originated [Member]
Unpaid contractual principal balance, with no related allowance recorded		706,098		513,736		706,098		513,736		665,051
Recorded investment, with no related allowance recorded		538,723		371,312		538,723		371,312		517,600
Average recorded investment, with no related allowance recorded		558,414		376,225		538,965		387,772		548,636
Interest income recognized, with no related allowance recorded		3,719		280		7,666		1,451		9,257
Unpaid contractual principal balance, with an allowance recorded		1,248,874		1,354,169		1,248,874		1,354,169		1,336,078
Recorded investment, with an allowance recorded		1,234,453		1,326,273		1,234,453		1,326,273		1,309,440
Related allowance		253,811		272,707		253,811		272,707		266,256
Average recorded investment, with an allowance recorded		1,237,197		1,330,015		1,246,235		1,341,584		1,328,919
Interest income recognized, with an allowance recorded		12,337		13,248		37,255		39,333		51,928
Real Estate Loans [Member] \| Residential [Member] \| Financial Asset Acquired [Member]
Unpaid contractual principal balance, with no related allowance recorded	[1]	456,272		1,211,254		456,272		1,211,254		1,082,484
Recorded investment, with no related allowance recorded	[1]	440,242		1,061,049		440,242		1,061,049		922,252
Average recorded investment, with no related allowance recorded	[1]	439,495		1,063,445		425,256		1,077,738		945,602
Interest income recognized, with no related allowance recorded	[1]	5,457		4,247		7,179		26,087		26,437
Unpaid contractual principal balance, with an allowance recorded	[1]
Recorded investment, with an allowance recorded	[1]
Related allowance	[1]
Average recorded investment, with an allowance recorded	[1]
Interest income recognized, with an allowance recorded	[1]
Real Estate Loans [Member] \| Investor Loans [Member] \| Financial Asset Originated [Member]
Unpaid contractual principal balance, with no related allowance recorded				127,420				127,420		126,389
Recorded investment, with no related allowance recorded				121,514				121,514		60,949
Average recorded investment, with no related allowance recorded				122,576				123,362		118,175
Interest income recognized, with no related allowance recorded								3,772		3,772
Unpaid contractual principal balance, with an allowance recorded		57,831				57,831
Recorded investment, with an allowance recorded		31,752				31,752
Related allowance
Average recorded investment, with an allowance recorded		32,427				32,291
Interest income recognized, with an allowance recorded		1,108				1,108
Real Estate Loans [Member] \| Investor Loans [Member] \| Financial Asset Acquired [Member]
Unpaid contractual principal balance, with no related allowance recorded	[1]	405,538		687,849		405,538		687,849		682,045
Recorded investment, with no related allowance recorded	[1]	261,659		579,172		261,659		579,172		444,254
Average recorded investment, with no related allowance recorded	[1]	263,562		663,538		246,751		697,174		659,246
Interest income recognized, with no related allowance recorded	[1]	4,722		2,893		13,859		34,582		37,368
Unpaid contractual principal balance, with an allowance recorded	[1]
Recorded investment, with an allowance recorded	[1]
Related allowance	[1]
Average recorded investment, with an allowance recorded	[1]
Interest income recognized, with an allowance recorded	[1]
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Originated [Member]
Unpaid contractual principal balance, with no related allowance recorded		6,375,413		6,487,088		6,375,413		6,487,088		6,487,088
Recorded investment, with no related allowance recorded		4,139,177		4,500,043		4,139,177		4,500,043		4,356,264
Average recorded investment, with no related allowance recorded		4,309,168		4,689,502		4,280,325		4,703,598		4,634,504
Interest income recognized, with no related allowance recorded						53,278		1,077		1,077
Unpaid contractual principal balance, with an allowance recorded
Recorded investment, with an allowance recorded
Related allowance
Average recorded investment, with an allowance recorded
Interest income recognized, with an allowance recorded
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Acquired [Member]
Unpaid contractual principal balance, with no related allowance recorded	[1]			249,920				249,920		248,938
Recorded investment, with no related allowance recorded	[1]			199,920				199,920		198,938
Average recorded investment, with no related allowance recorded	[1]			200,589				202,263		201,519
Interest income recognized, with no related allowance recorded	[1]			1,888				5,700		7,336
Unpaid contractual principal balance, with an allowance recorded	[1]
Recorded investment, with an allowance recorded	[1]
Related allowance	[1]
Average recorded investment, with an allowance recorded	[1]
Interest income recognized, with an allowance recorded	[1]
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Originated [Member]
Unpaid contractual principal balance, with no related allowance recorded
Recorded investment, with no related allowance recorded
Average recorded investment, with no related allowance recorded
Interest income recognized, with no related allowance recorded
Unpaid contractual principal balance, with an allowance recorded
Recorded investment, with an allowance recorded
Related allowance
Average recorded investment, with an allowance recorded
Interest income recognized, with an allowance recorded
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Acquired [Member]
Unpaid contractual principal balance, with no related allowance recorded	[1]
Recorded investment, with no related allowance recorded	[1]
Average recorded investment, with no related allowance recorded	[1]
Interest income recognized, with no related allowance recorded	[1]
Unpaid contractual principal balance, with an allowance recorded	[1]
Recorded investment, with an allowance recorded	[1]
Related allowance	[1]
Average recorded investment, with an allowance recorded	[1]
Interest income recognized, with an allowance recorded	[1]
Commercial Portfolio Segment [Member]
Interest income recognized, with no related allowance recorded										103,474
Commercial Portfolio Segment [Member] \| Financial Asset Originated [Member]
Unpaid contractual principal balance, with no related allowance recorded		1,369,695		1,303,000		1,369,695		1,303,000		1,562,756
Recorded investment, with no related allowance recorded		743,160		905,178		743,160		905,178		795,410
Average recorded investment, with no related allowance recorded		863,260		937,594		925,694		894,330		1,082,773
Interest income recognized, with no related allowance recorded		25,781		24,038		70,558		75,926
Unpaid contractual principal balance, with an allowance recorded
Recorded investment, with an allowance recorded
Related allowance
Average recorded investment, with an allowance recorded
Interest income recognized, with an allowance recorded
Commercial Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Unpaid contractual principal balance, with no related allowance recorded	[1]
Recorded investment, with no related allowance recorded	[1]
Average recorded investment, with no related allowance recorded	[1]
Interest income recognized, with no related allowance recorded	[1]
Unpaid contractual principal balance, with an allowance recorded	[1]
Recorded investment, with an allowance recorded	[1]
Related allowance	[1]
Average recorded investment, with an allowance recorded	[1]
Interest income recognized, with an allowance recorded	[1]
Home Equity Loans [Member] \| Financial Asset Originated [Member]
Unpaid contractual principal balance, with no related allowance recorded		33,287		48,218		33,287		48,218		47,650
Recorded investment, with no related allowance recorded		6,785		21,579		6,785		21,579		20,595
Average recorded investment, with no related allowance recorded		7,036		22,072		7,293		23,100		22,604
Interest income recognized, with no related allowance recorded		1,910		76		2,043		316		392
Unpaid contractual principal balance, with an allowance recorded
Recorded investment, with an allowance recorded
Related allowance
Average recorded investment, with an allowance recorded
Interest income recognized, with an allowance recorded
Home Equity Loans [Member] \| Financial Asset Acquired [Member]
Unpaid contractual principal balance, with no related allowance recorded	[1]	37,858		42,583		37,858		42,583		40,473
Recorded investment, with no related allowance recorded	[1]	164				164
Average recorded investment, with no related allowance recorded	[1]	238				79
Interest income recognized, with no related allowance recorded	[1]	1,851				2,501		600		1,329
Unpaid contractual principal balance, with an allowance recorded	[1]
Recorded investment, with an allowance recorded	[1]
Related allowance	[1]
Average recorded investment, with an allowance recorded	[1]
Interest income recognized, with an allowance recorded	[1]
Consumer Portfolio Segment [Member] \| Financial Asset Originated [Member]
Unpaid contractual principal balance, with no related allowance recorded		91,745				91,745				48,115
Recorded investment, with no related allowance recorded		91,662				91,662				34,266
Average recorded investment, with no related allowance recorded		92,474				92,822				38,514
Interest income recognized, with no related allowance recorded		2,542				2,542				1,576
Unpaid contractual principal balance, with an allowance recorded
Recorded investment, with an allowance recorded
Related allowance
Average recorded investment, with an allowance recorded
Interest income recognized, with an allowance recorded
Consumer Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Unpaid contractual principal balance, with no related allowance recorded	[1]	88,545		99,349		88,545		99,349		95,986
Recorded investment, with no related allowance recorded	[1]	55,492		56,708		55,492		56,708		60,371
Average recorded investment, with no related allowance recorded	[1]	56,249		58,084		57,957		62,234		64,013
Interest income recognized, with no related allowance recorded	[1]	1,401		1,338		3,949		4,464		6,062
Unpaid contractual principal balance, with an allowance recorded	[1]
Recorded investment, with an allowance recorded	[1]
Related allowance	[1]
Average recorded investment, with an allowance recorded	[1]
Interest income recognized, with an allowance recorded	[1]

[1]	Generally accepted accounting principles require that we record acquired loans at fair value at acquisition, which includes a discount for loans with credit impairment. These purchased credit impaired loans are not performing according to their contractual terms and meet the definition of an impaired loan. Although we do not accrue interest income at the contractual rate on these loans, we do recognize an accretable yield as interest income to the extent such yield is supported by cash flow analysis of the underlying loans.

Note 5 - Loans Receivable and_8

Note 5 - Loans Receivable and Allowance for Loan Losses - Purchased Credit Impaired (PCI) Loans (Details) - USD ($)	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Recorded investment at beginning of period	$ 1,021,424	$ 1,341,935
Accretion	2,505	25,964
Reductions for payments	(649,168)	(324,806)
Recorded investment at end of period	374,761	1,043,093
Oustanding principal balance at end of period	$ 470,368	$ 1,297,471

Note 5 - Loans Receivable and_9

Note 5 - Loans Receivable and Allowance for Loan Losses - Changes In the Accretable Yield for PCI Loans (Details) - USD ($)	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accretable yield, beginning of period	$ 31,895	$ 59,639
Accretion	(2,505)	(25,964)
Reclassification from nonaccretable difference
Accretable yield, end of period	$ 29,390	$ 33,675

Note 5 - Loans Receivable an_10

Note 5 - Loans Receivable and Allowance for Loan Losses - Summary of Troubled Debt Restructurings (Details)	Dec. 31, 2018USD ($)	Mar. 31, 2018USD ($)
Number of contracts	19	18
Troubled debt restructurings	$ 3,317,025	$ 3,344,039
Performing Financial Instruments [Member]
Troubled debt restructurings	1,895,485	1,835,654
Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 1,421,540	$ 1,508,385
Real Estate Loans [Member] \| Residential [Member]
Number of contracts	16	15
Troubled debt restructurings	$ 1,521,588	$ 1,543,130
Real Estate Loans [Member] \| Residential [Member] \| Performing Financial Instruments [Member]
Troubled debt restructurings	1,295,469	1,230,166
Real Estate Loans [Member] \| Residential [Member] \| Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 226,119	$ 312,964
Real Estate Loans [Member] \| Investor Loans [Member]
Number of contracts	0	0
Troubled debt restructurings	$ 0	$ 0
Real Estate Loans [Member] \| Investor Loans [Member] \| Performing Financial Instruments [Member]
Troubled debt restructurings	0	0
Real Estate Loans [Member] \| Investor Loans [Member] \| Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 0	$ 0
Real Estate Loans [Member] \| Commercial [Member]
Number of contracts	2	2
Troubled debt restructurings	$ 1,195,421	$ 1,195,421
Real Estate Loans [Member] \| Commercial [Member] \| Performing Financial Instruments [Member]
Troubled debt restructurings	0	0
Real Estate Loans [Member] \| Commercial [Member] \| Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 1,195,421	$ 1,195,421
Real Estate Loans [Member] \| Commercial Construction [Member]
Number of contracts	0	0
Troubled debt restructurings	$ 0	$ 0
Real Estate Loans [Member] \| Commercial Construction [Member] \| Performing Financial Instruments [Member]
Troubled debt restructurings	0	0
Real Estate Loans [Member] \| Commercial Construction [Member] \| Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 0	$ 0
Commercial Portfolio Segment [Member]
Number of contracts	1	1
Troubled debt restructurings	$ 600,016	$ 605,488
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Troubled debt restructurings	600,016	605,488
Commercial Portfolio Segment [Member] \| Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 0	$ 0
Home Equity Loans [Member]
Number of contracts	0	0
Troubled debt restructurings	$ 0	$ 0
Home Equity Loans [Member] \| Performing Financial Instruments [Member]
Troubled debt restructurings	0	0
Home Equity Loans [Member] \| Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 0	$ 0
Consumer Portfolio Segment [Member]
Number of contracts	0	0
Troubled debt restructurings	$ 0	$ 0
Consumer Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Troubled debt restructurings	0	0
Consumer Portfolio Segment [Member] \| Nonperforming Financial Instruments [Member]
Troubled debt restructurings	$ 0	$ 0

Note 5 - Loans Receivable an_11

Note 5 - Loans Receivable and Allowance for Loan Losses - Number of Contracts and Outstanding Loan Balance at Time of Modification (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Financing Receivable, Modifications, Number of Contracts	0
Real Estate Loans [Member] \| Residential [Member]
Financing Receivable, Modifications, Number of Contracts		2
Outstanding recorded investment		$ 50,432
Real Estate Loans [Member] \| One to four family, Residential [Member]
Financing Receivable, Modifications, Number of Contracts			1	3
Outstanding recorded investment			$ 20,565	$ 52,363

Note 5 - Loans Receivable an_12

Note 5 - Loans Receivable and Allowance for Loan Losses - Loans by Risk Grade (Details) - USD ($)		Dec. 31, 2018		Mar. 31, 2018		Dec. 31, 2017
Loans		$ 368,225,720		$ 389,221,239
Financial Asset Originated [Member]
Loans		267,867,262	[1]	277,250,109	[1]	$ 272,324,778
Financial Asset Acquired [Member]
Loans		100,358,458		111,971,130		115,515,899
Pass [Member]
Loans		358,602,772		375,484,442
Pass [Member] \| Financial Asset Originated [Member]
Loans		260,342,392		266,444,555
Pass [Member] \| Financial Asset Acquired [Member]
Loans		98,260,380		109,039,887
Special Mention [Member]
Loans		4,002,405		7,022,190
Special Mention [Member] \| Financial Asset Originated [Member]
Loans		2,634,840		5,688,785
Special Mention [Member] \| Financial Asset Acquired [Member]
Loans		1,367,565		1,333,405
Substandard [Member]
Loans		5,620,543		6,714,607
Substandard [Member] \| Financial Asset Originated [Member]
Loans		4,890,030		5,116,769
Substandard [Member] \| Financial Asset Acquired [Member]
Loans		730,513		1,597,838
Doubtful [Member]
Loans
Doubtful [Member] \| Financial Asset Originated [Member]
Loans
Doubtful [Member] \| Financial Asset Acquired [Member]
Loans
Unlikely to be Collected Financing Receivable [Member]
Loans
Unlikely to be Collected Financing Receivable [Member] \| Financial Asset Originated [Member]
Loans
Unlikely to be Collected Financing Receivable [Member] \| Financial Asset Acquired [Member]
Loans
Real Estate Loans [Member]
Loans		294,195,991		309,465,974
Real Estate Loans [Member] \| Financial Asset Originated [Member]
Loans	[1]	201,184,464		206,141,595
Real Estate Loans [Member] \| Financial Asset Acquired [Member]
Loans		93,011,527		103,324,379
Real Estate Loans [Member] \| Residential [Member] \| Financial Asset Originated [Member]
Loans		86,548,084				87,230,020
Real Estate Loans [Member] \| Residential [Member] \| Financial Asset Acquired [Member]
Loans		66,255,260				74,701,711
Real Estate Loans [Member] \| Residential [Member] \| Pass [Member]
Loans		148,599,703		158,765,098
Real Estate Loans [Member] \| Residential [Member] \| Pass [Member] \| Financial Asset Originated [Member]
Loans		83,743,323		87,863,805
Real Estate Loans [Member] \| Residential [Member] \| Pass [Member] \| Financial Asset Acquired [Member]
Loans		64,856,380		70,901,293
Real Estate Loans [Member] \| Residential [Member] \| Special Mention [Member]
Loans		3,286,050		3,291,173
Real Estate Loans [Member] \| Residential [Member] \| Special Mention [Member] \| Financial Asset Originated [Member]
Loans		2,327,412		2,365,652
Real Estate Loans [Member] \| Residential [Member] \| Special Mention [Member] \| Financial Asset Acquired [Member]
Loans		958,638		925,521
Real Estate Loans [Member] \| Residential [Member] \| Substandard [Member]
Loans		917,591		1,391,806
Real Estate Loans [Member] \| Residential [Member] \| Substandard [Member] \| Financial Asset Originated [Member]
Loans		477,349		469,554
Real Estate Loans [Member] \| Residential [Member] \| Substandard [Member] \| Financial Asset Acquired [Member]
Loans		440,242		922,252
Real Estate Loans [Member] \| Investor Loans [Member] \| Financial Asset Originated [Member]
Loans		7,337,281				7,375,997
Real Estate Loans [Member] \| Investor Loans [Member] \| Financial Asset Acquired [Member]
Loans		16,407,265				18,208,906
Real Estate Loans [Member] \| Investor Loans [Member] \| Pass [Member]
Loans		23,178,635		25,933,428
Real Estate Loans [Member] \| Investor Loans [Member] \| Pass [Member] \| Financial Asset Originated [Member]
Loans		7,305,529		9,214,082
Real Estate Loans [Member] \| Investor Loans [Member] \| Pass [Member] \| Financial Asset Acquired [Member]
Loans		15,873,106		16,719,346
Real Estate Loans [Member] \| Investor Loans [Member] \| Special Mention [Member]
Loans		273,806		297,209
Real Estate Loans [Member] \| Investor Loans [Member] \| Special Mention [Member] \| Financial Asset Originated [Member]
Loans
Real Estate Loans [Member] \| Investor Loans [Member] \| Special Mention [Member] \| Financial Asset Acquired [Member]
Loans		273,806		297,209
Real Estate Loans [Member] \| Investor Loans [Member] \| Substandard [Member]
Loans		292,106		505,203
Real Estate Loans [Member] \| Investor Loans [Member] \| Substandard [Member] \| Financial Asset Originated [Member]
Loans		31,752		60,949
Real Estate Loans [Member] \| Investor Loans [Member] \| Substandard [Member] \| Financial Asset Acquired [Member]
Loans		260,354		444,254
Real Estate Loans [Member] \| Commercial [Member]
Loans		115,045,570		112,166,254
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Originated [Member]
Loans		105,755,786	[1]	100,403,769	[1]	100,857,452
Real Estate Loans [Member] \| Commercial [Member] \| Financial Asset Acquired [Member]
Loans		9,289,784		11,762,485		12,160,844
Real Estate Loans [Member] \| Commercial [Member] \| Pass [Member]
Loans		110,906,393		104,518,917
Real Estate Loans [Member] \| Commercial [Member] \| Pass [Member] \| Financial Asset Originated [Member]
Loans		101,616,609		92,955,370
Real Estate Loans [Member] \| Commercial [Member] \| Pass [Member] \| Financial Asset Acquired [Member]
Loans		9,289,784		11,563,547
Real Estate Loans [Member] \| Commercial [Member] \| Special Mention [Member]
Loans				3,092,135
Real Estate Loans [Member] \| Commercial [Member] \| Special Mention [Member] \| Financial Asset Originated [Member]
Loans				3,092,135
Real Estate Loans [Member] \| Commercial [Member] \| Special Mention [Member] \| Financial Asset Acquired [Member]
Loans
Real Estate Loans [Member] \| Commercial [Member] \| Substandard [Member]
Loans		4,139,177		4,555,202
Real Estate Loans [Member] \| Commercial [Member] \| Substandard [Member] \| Financial Asset Originated [Member]
Loans		4,139,177		4,356,264
Real Estate Loans [Member] \| Commercial [Member] \| Substandard [Member] \| Financial Asset Acquired [Member]
Loans				198,938
Real Estate Loans [Member] \| Commercial Construction [Member]
Loans		2,602,530		7,115,803
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Originated [Member]
Loans		1,543,313	[1]	5,763,784	[1]	3,995,441
Real Estate Loans [Member] \| Commercial Construction [Member] \| Financial Asset Acquired [Member]
Loans		1,059,217		1,352,019		856,970
Real Estate Loans [Member] \| Commercial Construction [Member] \| Pass [Member]
Loans		2,602,530		7,115,803
Real Estate Loans [Member] \| Commercial Construction [Member] \| Pass [Member] \| Financial Asset Originated [Member]
Loans		1,543,313		5,763,784
Real Estate Loans [Member] \| Commercial Construction [Member] \| Pass [Member] \| Financial Asset Acquired [Member]
Loans		1,059,217		1,352,019
Real Estate Loans [Member] \| Commercial Construction [Member] \| Special Mention [Member]
Loans
Real Estate Loans [Member] \| Commercial Construction [Member] \| Special Mention [Member] \| Financial Asset Originated [Member]
Loans
Real Estate Loans [Member] \| Commercial Construction [Member] \| Special Mention [Member] \| Financial Asset Acquired [Member]
Loans
Real Estate Loans [Member] \| Commercial Construction [Member] \| Substandard [Member]
Loans
Real Estate Loans [Member] \| Commercial Construction [Member] \| Substandard [Member] \| Financial Asset Originated [Member]
Loans
Real Estate Loans [Member] \| Commercial Construction [Member] \| Substandard [Member] \| Financial Asset Acquired [Member]
Loans
Commercial Portfolio Segment [Member]
Loans	[2]	36,983,002		40,143,965
Commercial Portfolio Segment [Member] \| Financial Asset Originated [Member]
Loans		35,276,493	[1],[2]	38,302,739	[1],[2]	38,988,229
Commercial Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Loans		1,706,509	[2]	1,841,226	[2]	1,928,232
Commercial Portfolio Segment [Member] \| Pass [Member]
Loans		36,542,379		39,819,519
Commercial Portfolio Segment [Member] \| Pass [Member] \| Financial Asset Originated [Member]
Loans		34,835,870		37,978,293
Commercial Portfolio Segment [Member] \| Pass [Member] \| Financial Asset Acquired [Member]
Loans		1,706,509		1,841,226
Commercial Portfolio Segment [Member] \| Special Mention [Member]
Loans		297,478		134,524
Commercial Portfolio Segment [Member] \| Special Mention [Member] \| Financial Asset Originated [Member]
Loans		297,478		134,524
Commercial Portfolio Segment [Member] \| Special Mention [Member] \| Financial Asset Acquired [Member]
Loans
Commercial Portfolio Segment [Member] \| Substandard [Member]
Loans		143,145		189,922
Commercial Portfolio Segment [Member] \| Substandard [Member] \| Financial Asset Originated [Member]
Loans		143,145		189,922
Commercial Portfolio Segment [Member] \| Substandard [Member] \| Financial Asset Acquired [Member]
Loans
Home Equity Loans [Member]
Loans		20,018,119		19,995,789
Home Equity Loans [Member] \| Financial Asset Originated [Member]
Loans		15,077,068	[1]	13,956,327	[1]	13,802,091
Home Equity Loans [Member] \| Financial Asset Acquired [Member]
Loans		4,941,051		6,039,462		6,874,136
Home Equity Loans [Member] \| Pass [Member]
Loans		19,875,889		19,864,519
Home Equity Loans [Member] \| Pass [Member] \| Financial Asset Originated [Member]
Loans		15,070,123		13,935,732
Home Equity Loans [Member] \| Pass [Member] \| Financial Asset Acquired [Member]
Loans		4,805,766		5,928,787
Home Equity Loans [Member] \| Special Mention [Member]
Loans		135,121		110,675
Home Equity Loans [Member] \| Special Mention [Member] \| Financial Asset Originated [Member]
Loans
Home Equity Loans [Member] \| Special Mention [Member] \| Financial Asset Acquired [Member]
Loans		135,121		110,675
Home Equity Loans [Member] \| Substandard [Member]
Loans		7,109		20,595
Home Equity Loans [Member] \| Substandard [Member] \| Financial Asset Originated [Member]
Loans		6,945		20,595
Home Equity Loans [Member] \| Substandard [Member] \| Financial Asset Acquired [Member]
Loans		164
Consumer Portfolio Segment [Member]
Loans	[3]	17,028,608		19,615,511
Consumer Portfolio Segment [Member] \| Financial Asset Originated [Member]
Loans		16,329,237	[1],[3]	18,849,448	[1],[3]	20,075,548
Consumer Portfolio Segment [Member] \| Financial Asset Acquired [Member]
Loans		699,372		766,063	[3]	$ 785,100
Consumer Portfolio Segment [Member] \| Pass [Member]
Loans		16,897,243		19,467,158
Consumer Portfolio Segment [Member] \| Pass [Member] \| Financial Asset Originated [Member]
Loans		16,227,625		18,733,489
Consumer Portfolio Segment [Member] \| Pass [Member] \| Financial Asset Acquired [Member]
Loans		669,618		733,669
Consumer Portfolio Segment [Member] \| Special Mention [Member]
Loans		9,950		96,474
Consumer Portfolio Segment [Member] \| Special Mention [Member] \| Financial Asset Originated [Member]
Loans		9,950		96,474
Consumer Portfolio Segment [Member] \| Special Mention [Member] \| Financial Asset Acquired [Member]
Loans
Consumer Portfolio Segment [Member] \| Substandard [Member]
Loans		121,415		51,879
Consumer Portfolio Segment [Member] \| Substandard [Member] \| Financial Asset Originated [Member]
Loans		91,662		19,485
Consumer Portfolio Segment [Member] \| Substandard [Member] \| Financial Asset Acquired [Member]
Loans		$ 29,753		$ 32,394

[1]	As a result of the acquisition of Fraternity Community Bancorp, Inc., the parent company of Fraternity Federal Savings and Loan, in May 2016 and Fairmount Bancorp, Inc., the parent company of Fairmount Bank, in September 2015, we have segmented the portfolio into two components, loans originated by Hamilton Bank "Legacy" and loans acquired from Fraternity Community Bancorp, Inc. and Fairmount Bancorp, Inc. "Acquired".
[2]	"Legacy" commercial business loans at March 31, 2018 includes a $15.5 million pool of commercial lease loans purchased in June 2017 and $3.2 million in guaranteed SBA loans purchased in second half of fiscal 2018.
[3]	"Legacy" consumer loans at March 31, 2018 includes $19.9 million of purchased loan pools consisting of recreational vehicles that were purchased in August and December 2017.

Note 5 - Loans Receivable an_13

Note 5 - Loans Receivable and Allowance for Loan Losses - Outstanding Commitments and Unused Lines of Credit (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Unused Commercial Lines of Credit [Member]
Outstanding commitments and unused lines of credit	$ 13,004,510	$ 9,187,810
Unused Home Equity Lines of Credit [Member]
Outstanding commitments and unused lines of credit	23,263,860	22,560,376
Unused Consumer Lines of Credit [Member]
Outstanding commitments and unused lines of credit	26,770	29,331
Residential Construction Loan Commitments [Member]
Outstanding commitments and unused lines of credit	6,934,369	4,234,076
Commercial Construction Loan Commitments [Member]
Outstanding commitments and unused lines of credit	2,678,900	8,968,416
Home Equity Loan Commitments [Member]
Outstanding commitments and unused lines of credit	200,000	389,600
Commercial loan commitments [Member]
Outstanding commitments and unused lines of credit	3,671,000	5,125,000
Standby Letters of Credit [Member]
Outstanding commitments and unused lines of credit	$ 766,783	$ 250,224

Note 6 - Goodwill and Other I_3

Note 6 - Goodwill and Other Intangible Asset (Details Textual) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Business Acquisition, Goodwill, Expected Tax Deductible Amount	$ 2,700
Goodwill, Impairment Loss			$ 0
Core Deposits [Member]
Finite-Lived Intangible Asset, Useful Life	8 years

Note 6 - Goodwill and Other I_4

Note 6 - Goodwill and Other Intangible Assets - Activity in Goodwill and Intangible Assets (Details) - USD ($)	9 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Goodwill, balance	$ 8,563,530	$ 8,563,530	$ 8,563,530
Goodwill, Amortization			0
Core deposit intangible, Amortization	(94,548)	(94,548)
Goodwill, balance	8,563,530	8,563,530	8,563,530
Core deposit intangible, balance	518,685
Core Deposits [Member]
Core deposit intangible, balance	613,234	739,298	739,298
Core deposit intangible, Amortization	(94,549)	(94,548)
Core deposit intangible, balance	$ 518,685	$ 644,750	$ 613,234

Note 6 - Goodwill and Other I_5

Note 6 - Goodwill and Other Intangible Assets - Future Expected Annual Amortization Associated With Core Deposit Intangible (Details)	Dec. 31, 2018USD ($)
2,019	$ 31,519
2,020	123,737
2,021	98,070
2,022	98,070
2,023	98,070
2,024	64,177
2,025	5,042
Total core deposit intangible	$ 518,685

Note 7 - Derivative - Interes_3

Note 7 - Derivative - Interest Rate Swap Agreement (Details Textual) - USD ($)	3 Months Ended			9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2015	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Derivative, Notional Amount	$ 11,550,000			$ 11,550,000
Interest Income (Expense), Net, Total	3,438,289	$ 3,637,383		10,994,690	$ 10,841,417
Interest Rate Swap [Member]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	0	0		0	0
Interest Rate Swap [Member] \| Cash Flow Hedging [Member]
Derivative Liability, Fair Value of Collateral	762,000			762,000		$ 751,000
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net, Total	(1,996)	(5,445)		(1,075)	(9,124)
Interest Rate Swap [Member] \| Cash Flow Hedging [Member] \| Federal Home Loan Bank Advances [Member]
Derivative, Notional Amount	11,600,000			11,600,000
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net, Total	(1,996)	$ (5,445)		(1,075)	$ (9,124)
Interest Income (Expense), Net, Total	(60)			(1,892)
Interest Rate Swap [Member] \| Fair Value Hedging [Member]
Derivative, Notional Amount	$ 3,000,000		$ 3,300,000	$ 3,000,000
Derivative, Fixed Interest Rate			3.99%
Derivative, Term of Contract			10 years

Note 7 - Derivative - Interes_4

Note 7 - Derivative - Interest Rate Swap Agreement - Information on Interest Rate Swaps (Details)	9 Months Ended
	Dec. 31, 2018USD ($)
Notional amounts	$ 11,550,000
FHLB Advance Swap 1 [Member]
Notional amounts	$ 1,850,000
Effective Start Date	Mar. 9, 2017
Maturity Date	Mar. 9, 2022
Pay Fixed Rate	2.24%
Receive Floating Rate	3-Month LIBOR
FHLB Advance Swap 2 [Member]
Notional amounts	$ 1,850,000
Effective Start Date	Mar. 9, 2017
Maturity Date	Mar. 9, 2024
Pay Fixed Rate	2.41%
Receive Floating Rate	3-Month LIBOR
FHLB Advance Swap 3 [Member]
Notional amounts	$ 1,850,000
Effective Start Date	Mar. 9, 2017
Maturity Date	Mar. 9, 2027
Pay Fixed Rate	2.57%
Receive Floating Rate	3-Month LIBOR
FHLB Advance Swap 4 [Member]
Notional amounts	$ 2,000,000
Effective Start Date	Mar. 29, 2017
Maturity Date	Mar. 29, 2022
Pay Fixed Rate	2.08%
Receive Floating Rate	3-Month LIBOR
FHLB Advance Swap 5 [Member]
Notional amounts	$ 2,000,000
Effective Start Date	Mar. 29, 2017
Maturity Date	Mar. 29, 2024
Pay Fixed Rate	2.24%
Receive Floating Rate	3-Month LIBOR
FHLB Advance Swap 6 [Member]
Notional amounts	$ 2,000,000
Effective Start Date	Mar. 29, 2017
Maturity Date	Mar. 29, 2027
Pay Fixed Rate	2.40%
Receive Floating Rate	3-Month LIBOR

Note 7 - Derivative - Interes_5

Note 7 - Derivative - Interest Rate Swap Agreement - Cash Flow Hedges (Details) - Interest Rate Swap [Member] - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Derivative notional amount	$ 11,550,000	$ 11,550,000
Loans - Commercial real estate loan	$ 123,118	$ 217,464

Note 7 - Derivative - Interes_6

Note 7 - Derivative - Interest Rate Swap Agreement - Cash Flow Derivative Gains (Loss) Recorded In AOCI and the Statement of Income (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Unrealized gain on derivative transactions securities, net of tax effect			$ (93,271)	$ 46,786
Cash Flow Hedging [Member] \| Interest Rate Swap [Member]
Unrealized gain on derivative transactions securities, net of tax effect	$ (287,116)	$ 122,388	(93,271)	22,784
Interest Rate ContraAmount of gain (loss) reclassified from OCI to Interest Incomet
Amount of gain (loss) recognized in Other Noninterest Income (ineffective portion)	$ (1,996)	$ (5,445)	$ (1,075)	$ (9,124)

Note 7 - Derivative - Interes_7

Note 7 - Derivative - Interest Rate Swap Agreement - Fair Value Hedge (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Commercial real estate loan, principal amount	$ 366,425,510	$ 387,598,982
Interest Rate Swap [Member]
Derivative notional amount	11,550,000	11,550,000
Loans and Leases [Member] \| Offsetting Commercial Real Estate Loan by Interest Rate Swap [Member]
Derivative notional amount
Commercial real estate loan, principal amount	3,027,702	3,091,892
Commercial real estate loan, fair value	2,984,595	3,022,744
Other Assets [Member] \| Interest Rate Swap [Member]
Derivative notional amount	3,027,702	3,091,892
Commercial real estate loan, fair value	$ 43,107	$ 69,148

Note 8 - Deposits - Composition

Note 8 - Deposits - Composition of Deposits and Related Percentage Mix (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Savings, amount	$ 41,548,268	$ 42,499,381
Savings, percentage	10.80%	10.60%
Noninterest-bearing checking, amount	$ 27,365,942	$ 29,557,943
Noninterest-bearing checking, percentage	7.10%	7.30%
Interest-bearing checking, amount	$ 28,478,231	$ 27,219,286
Interest-bearing checking, percentage	7.40%	6.70%
Money market accounts, amount	$ 48,128,831	$ 58,466,228
Money market accounts, percentage	12.50%	14.40%
Time deposits, amount	$ 238,448,636	$ 246,988,613
Time deposits, percentage	62.10%	61.00%
Gross deposits, amount	$ 383,969,908	$ 404,731,451
Gross deposits, percentage	100.00%	100.00%
Premium on deposits asssumed	$ 201,034	$ 411,524
Total deposits	$ 384,170,942	$ 405,142,975

Note 9 - Lines of Credit and _3

Note 9 - Lines of Credit and Federal Home Loan Bank Advances (Details Textual) - USD ($)	9 Months Ended
	Dec. 31, 2018	Mar. 31, 2018
Federal Home Loan Bank Advances Total Funding Available As A Percent Of Total Assets	25.00%
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	$ 73,600,000	$ 68,300,000
Loans Pledged as Collateral	114,800,000	127,100,000
Derivative, Notional Amount	11,550,000
Secured Debt [Member]
Line of Credit Facility, Maximum Borrowing Capacity	5,000,000
Unsecured Debt [Member]
Line of Credit Facility, Maximum Borrowing Capacity	1,000,000
Long-term Line of Credit, Total	0	$ 0
Federal Home Loan Bank Advances [Member] \| Individual Cash Flow Hedge Tied to FHLB, 3 [Member] \| Borrowing One [Member]
Derivative, Notional Amount	$ 1,850,000
Derivative, Term of Contract	10 years
Federal Home Loan Bank Advances [Member] \| Individual Cash Flow Hedge Tied to FHLB, 3 [Member] \| Borrowing Two [Member]
Derivative, Term of Contract	10 years
Federal Home Loan Bank Advances [Member] \| Individual Cash Flow Hedge Tied to FHLB, 2 [Member] \| Borrowing One [Member]
Derivative, Term of Contract	7 years
Federal Home Loan Bank Advances [Member] \| Individual Cash Flow Hedge Tied to FHLB, 2 [Member] \| Borrowing Two [Member]
Derivative, Term of Contract	7 years
Federal Home Loan Bank Advances [Member] \| Individual Cash Flow Hedge Tied to FHLB, 1 [Member] \| Borrowing One [Member]
Derivative, Term of Contract	5 years
Federal Home Loan Bank Advances [Member] \| Individual Cash Flow Hedge Tied to FHLB, 1 [Member] \| Borrowing Two [Member]
Derivative, Notional Amount	$ 2,000,000
Derivative, Term of Contract	5 years

Note 9 - Lines of Credit and _4

Note 9 - Lines of Credit and Federal Home Loan Bank Advances - Federal Home Loan Bank Advances (Details) - USD ($)		9 Months Ended	12 Months Ended
		Dec. 31, 2018	Mar. 31, 2018
Amount		$ 51,050,000	$ 60,550,000
Premium on FHLB advances assumed			122,140
Total borrowings		51,050,000	60,672,140
Borrowing One [Member] \| Federal Home Loan Bank Advances [Member]
Amount	[1]	$ 5,550,000	$ 5,550,000
Rate	[1]	2.57%	1.84%
Maturity Date	[1]	Mar. 11, 2019	Jun. 11, 2018
Borrowing Two [Member] \| Federal Home Loan Bank Advances [Member]
Amount	[2]	$ 6,000,000	$ 6,000,000
Rate	[2]	2.58%	1.90%
Maturity Date	[2]	Mar. 29, 2019	Jun. 29, 2018
Borrowing Three [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 3,000,000	$ 1,000,000
Rate		2.71%	2.60%
Maturity Date		Aug. 26, 2019	Jul. 2, 2018
Borrowing Four [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 3,000,000	$ 1,000,000
Rate		1.59%	3.05%
Maturity Date		Aug. 26, 2019	Jul. 3, 2018
Borrowing Five [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 1,500,000	$ 5,000,000
Rate		1.95%	3.94%
Maturity Date		Nov. 25, 2019	Jul. 23, 2018
Borrowing Six [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 3,000,000	$ 1,000,000
Rate		2.31%	1.74%
Maturity Date		Feb. 3, 2020	Jul. 31, 2018
Borrowing Seven [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 1,000,000	$ 1,000,000
Rate		2.86%	1.40%
Maturity Date		Aug. 4, 2020	Aug. 21, 2018
Borrowing Eight [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 2,000,000	$ 4,000,000
Rate		2.56%	1.94%
Maturity Date		Aug. 27, 2020	Aug. 27, 2018
Borrowing Nine [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 1,000,000	$ 3,000,000
Rate		2.15%	1.41%
Maturity Date		Nov. 30, 2020	Aug. 27, 2018
Borrowing Ten [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 2,000,000	$ 5,000,000
Rate		2.28%	3.38%
Maturity Date		Dec. 28, 2020	Sep. 19, 2018
Borrowing Eleven [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 2,000,000	$ 1,000,000
Rate		2.49%	2.60%
Maturity Date		Feb. 1, 2021	Oct. 2, 2018
Borrowing Twelve [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 3,000,000	$ 1,000,000
Rate		2.93%	1.95%
Maturity Date		Jul. 26, 2021	Dec. 31, 2018
Borrowing Thirteen [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 2,000,000	$ 3,000,000
Rate		3.01%	1.38%
Maturity Date		Aug. 4, 2021	Jul. 31, 2019
Borrowing Fourteen [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 1,000,000	$ 3,000,000
Rate		2.88%	1.96%
Maturity Date		Aug. 23, 2021	Aug. 26, 2019
Borrowing Fifteen [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 3,000,000	$ 3,000,000
Rate		1.48%	1.59%
Maturity Date		Aug. 25, 2021	Aug. 26, 2019
Borrowing Sixteen [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 2,000,000	$ 3,000,000
Rate		2.68%	1.42%
Maturity Date		Aug. 27, 2021	Aug. 26, 2019
Borrowing Seventeen [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 3,000,000	$ 1,500,000
Rate		2.79%	1.95%
Maturity Date		Aug. 29, 2022	Nov. 25, 2019
Borrowing Eighteen [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 2,000,000	$ 1,500,000
Rate		3.14%	1.78%
Maturity Date		Sep. 19, 2022	Nov. 27, 2019
Borrowing Nineteen [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 3,000,000	$ 3,000,000
Rate		2.70%	2.31%
Maturity Date		Aug. 28, 2023	Feb. 3, 2020
Borrowing Twenty [Member] \| Federal Home Loan Bank Advances [Member]
Amount		$ 2,000,000	$ 1,000,000
Rate		3.20%	2.15%
Maturity Date		Sep. 19, 2023	Nov. 30, 2020
Borrowing Twenty One [Member] \| Federal Home Loan Bank Advances [Member]
Amount			$ 2,000,000
Rate			2.28%
Maturity Date			Dec. 28, 2020
Borrowing Twenty Two [Member] \| Federal Home Loan Bank Advances [Member]
Amount			$ 2,000,000
Rate			2.49%
Maturity Date			Feb. 1, 2021
Borrowing Twenty Three [Member] \| Federal Home Loan Bank Advances [Member]
Amount			$ 3,000,000
Rate			1.48%
Maturity Date			Aug. 25, 2021

[1]	FHLB Advance is tied to three derivative cash flow hedges in increments of $1.85 million each. The three individual cash flow hedges are for a term of five, seven and ten years, respectively and are tied to the 3-month LIBOR rate. In order for the cash flow hedges to remain effective, the corresponding FHLB Advance will have to be renewed every three months until the respective cash flow hedge matures. The maturity date for the three cash flow hedges are March 9, 2022, 2024, and 2027.
[2]	FHLB Advance is tied to three derivative cash flow hedges in increments of $2.0 million each. The three individual cash flow hedges are for a term of five, seven and ten years, respectively and are tied to the 3-month LIBOR rate. In order for the cash flow hedges to remain effective, the corresponding FHLB Advance will have to be renewed every three months until the respective cash flow hedge matures. The maturity for the three cash flow hedges are March 29, 2022, 2024, and 2027.

Note 10 - Regulatory Capital _3

Note 10 - Regulatory Capital Ratios (Details Textual)		9 Months Ended
Note 10 - Regulatory Capital Ratios (Details Textual)		Dec. 31, 2018	Jan. 01, 2019	Mar. 31, 2018
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	6.50%		6.50%
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	8.00%		8.00%
Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	10.00%		10.00%
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	[1]	5.00%		5.00%
Capital Conservation Buffer Level R Ratio		0.625%
Capital Conservation Buffer Phase In Period		4 years
Subsequent Event [Member]
Capital Conservation Buffer Level R Ratio			2.50%

[1]	Under prompt corrective action

Note 10 - Regulatory Capital _4

Note 10 - Regulatory Capital Ratios - Capital Ratios and Minimum Capital Requirements of Bank (Details) - USD ($) $ in Thousands		Dec. 31, 2018	Mar. 31, 2018
Common equity tier 1 capital (to risk-weighted assets)		$ 49,329	$ 47,308
Common equity tier 1 capital (to risk-weighted assets)		14.12%	12.79%
Common equity tier 1 capital (to risk-weighted assets)	[1]	$ 22,714	$ 24,044
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	6.50%	6.50%
Total risk-based capital (to risk-weighted assets)		$ 52,417	$ 50,180
Total risk-based capital (to risk-weighted assets)		15.00%	13.57%
Total risk-based capital (to risk-weighted assets)	[1]	$ 34,945	$ 36,992
Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	10.00%	10.00%
Tier 1 capital (to risk-weighted assets)		$ 49,329	$ 47,308
Tier 1 capital (to risk-weighted assets)		14.12%	12.79%
Tier 1 capital (to risk-weighted assets)	[1]	$ 27,956	$ 29,593
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	8.00%	8.00%
Tier 1 capital (to adjusted total assets)		$ 49,329	$ 47,308
Tier 1 capital (to adjusted total assets)		10.00%	9.15%
Tier 1 capital (to adjusted total assets)	[1]	$ 24,665	$ 25,843
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	[1]	5.00%	5.00%
Minimum Capital Required - Basel III Phase-In Schedule [Member]
Common equity tier 1 capital (to risk-weighted assets)		$ 22,277	$ 23,582
Common equity tier 1 capital (to risk-weighted assets)		6.375%	6.375%
Total risk-based capital (to risk-weighted assets)		$ 34,508	$ 36,529
Total risk-based capital (to risk-weighted assets)		9.875%	9.875%
Tier 1 capital (to risk-weighted assets)		$ 27,519	$ 29,131
Tier 1 capital (to risk-weighted assets)		7.875%	7.875%
Tier 1 capital (to adjusted total assets)		$ 19,732	$ 20,674
Tier 1 capital (to adjusted total assets)		4.00%	4.00%
Minimum Capital Required - Basel III Fully Phased-In [Member]
Common equity tier 1 capital (to risk-weighted assets)		$ 24,461	$ 25,894
Common equity tier 1 capital (to risk-weighted assets)		7.00%	7.00%
Total risk-based capital (to risk-weighted assets)		$ 36,692	$ 38,841
Total risk-based capital (to risk-weighted assets)		10.50%	10.50%
Tier 1 capital (to risk-weighted assets)		$ 27,703	$ 31,443
Tier 1 capital (to risk-weighted assets)		8.50%	8.50%
Tier 1 capital (to adjusted total assets)		$ 19,732	$ 20,674
Tier 1 capital (to adjusted total assets)		4.00%	4.00%
Hamilton Bank [Member]
Common equity tier 1 capital (to risk-weighted assets)		$ 43,688	$ 39,126
Common equity tier 1 capital (to risk-weighted assets)		12.55%	10.61%
Common equity tier 1 capital (to risk-weighted assets)	[1]	$ 22,621	$ 23,959
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	6.50%	6.50%
Total risk-based capital (to risk-weighted assets)		$ 46,776	$ 41,998
Total risk-based capital (to risk-weighted assets)		13.44%	11.39%
Total risk-based capital (to risk-weighted assets)	[1]	$ 34,801	$ 36,860
Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	10.00%	10.00%
Tier 1 capital (to risk-weighted assets)		$ 43,688	$ 39,126
Tier 1 capital (to risk-weighted assets)		12.55%	10.61%
Tier 1 capital (to risk-weighted assets)	[1]	$ 27,841	$ 29,488
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	[1]	8.00%	8.00%
Tier 1 capital (to adjusted total assets)		$ 43,688	$ 39,126
Tier 1 capital (to adjusted total assets)		8.91%	7.64%
Tier 1 capital (to adjusted total assets)	[1]	$ 24,523	$ 25,621
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	[1]	5.00%	5.00%
Hamilton Bank [Member] \| Minimum Capital Required - Basel III Phase-In Schedule [Member]
Common equity tier 1 capital (to risk-weighted assets)		$ 22,186	$ 23,498
Common equity tier 1 capital (to risk-weighted assets)		6.375%	6.375%
Total risk-based capital (to risk-weighted assets)		$ 34,366	$ 36,399
Total risk-based capital (to risk-weighted assets)		9.875%	9.875%
Tier 1 capital (to risk-weighted assets)		$ 27,406	$ 29,027
Tier 1 capital (to risk-weighted assets)		7.875%	7.875%
Tier 1 capital (to adjusted total assets)		$ 19,619	$ 20,497
Tier 1 capital (to adjusted total assets)		4.00%	4.00%
Hamilton Bank [Member] \| Minimum Capital Required - Basel III Fully Phased-In [Member]
Common equity tier 1 capital (to risk-weighted assets)		$ 24,361	$ 25,802
Common equity tier 1 capital (to risk-weighted assets)		7.00%	7.00%
Total risk-based capital (to risk-weighted assets)		$ 36,541	$ 38,703
Total risk-based capital (to risk-weighted assets)		10.50%	10.50%
Tier 1 capital (to risk-weighted assets)		$ 29,581	$ 31,331
Tier 1 capital (to risk-weighted assets)		8.50%	8.50%
Tier 1 capital (to adjusted total assets)		$ 19,619	$ 20,497
Tier 1 capital (to adjusted total assets)		4.00%	4.00%

[1]	Under prompt corrective action

Note 11 - Stock Based Compens_3

Note 11 - Stock Based Compensation (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Nov. 30, 2013	Oct. 10, 2012
Share Price								$ 10
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	27,861		27,861		19,440	36,220
2013 Equity Incentive Plan [Member]
Stock or Unit Option Plan Expense	$ 61,514	$ 57,392	$ 184,542	$ 172,177
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total	$ 146,164		$ 146,164
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 255 days
Share Price	$ 13.90		$ 13.90
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 18,583		$ 18,583
Restricted Stock or Unit Expense	$ 64,089	$ 57,819	$ 192,268	$ 173,457
2013 Equity Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized							148,120
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	92,701		92,701
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total			268,204
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			5 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total	$ 158,591		$ 158,591
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 219 days
2013 Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Share-based Compensation Award, Tranche Five[Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized							370,300
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			5 years
2013 Equity Incentive Plan [Member] \| Employee Stock Option [Member] \| Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Employee Stock Option [Member] \| Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Employee Stock Option [Member] \| Share-based Compensation Award, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Employee Stock Option [Member] \| Share-based Compensation Award, Tranche Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Employee Stock Option [Member] \| Share-based Compensation Award, Tranche Five[Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			20.00%
2013 Equity Incentive Plan [Member] \| Employee Stock Option [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years

Note 11 - Stock Based Compens_4

Note 11 - Stock Based Compensation - Fair Value Assumptions (Details) - $ / shares	Apr. 01, 2018	Feb. 03, 2017	Nov. 01, 2016	Feb. 03, 2014	Dec. 31, 2018	Mar. 31, 2018
Number of options granted (in shares)	20,354	3,700	19,000	225,150	20,354
Risk free interest rate	2.67%	2.27%	1.61%	2.07%
Expected term (Year)	7 years	7 years	7 years	7 years
Expected stock price volatility	19.61%	27.26%	27.17%	27.30%
Dividend yield	0.00%	0.00%	0.00%	0.00%
Fair value of options granted (in dollars per share)	$ 4.05	$ 5.18	$ 4.35	$ 4.65

Note 11 - Stock Based Compens_5

Note 11 - Stock Based Compensation - Stock Option Activity (Details) - $ / shares	Apr. 01, 2018	Feb. 03, 2017	Nov. 01, 2016	Feb. 03, 2014	Dec. 31, 2018	Mar. 31, 2018	Mar. 31, 2017
Outstanding, beginning of period (in shares)	242,350				242,350	242,350
Outstanding, beginning of period (in dollars per share)					$ 13.87	$ 13.84	$ 13.84
Outstanding, beginning of period (Year)					5 years 219 days	6 years 36 days	7 years 36 days
Granted (in shares)	20,354	3,700	19,000	225,150	20,354
Granted (in dollars per share)					$ 14.25
Granted (Year)					9 years 109 days
Exercised (in shares)
Exercised (in dollars per share)
Exercised (Year)
Forfeited, exchanged or expired (in shares)
Forfeited, exchanged or expired (in dollars per share)
Forfeited, exchanged or expired (Year)
Outstanding, end of period (in shares)					262,704	242,350	242,350
Vested at end of year (in shares)					184,060	180,260
Vested at end of year (in dollars per share)					$ 13.84	$ 13.84
Vested at end of year (Year)					5 years 73 days	5 years 292 days

Note 11 - Stock Based Compens_6

Note 11 - Stock Based Compensation - Restricted Stock Activity (Details) - Restricted Stock [Member] - USD ($)	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Mar. 31, 2018	Mar. 31, 2017
Nonvested (in shares)	19,440	36,220
Nonvested shares (in dollars per share)	$ 13.90	$ 13.74	$ 13.76
Granted (in shares)	8,801
Granted (in dollars per share)	$ 14.25
Vested (in shares)	(380)	(16,780)
Vested (in dollars per share)	$ 13.61	$ 13.78
Forfeited (in shares)
Forfeited (in dollars per share)
Nonvested (in shares)	27,861	19,440
Fair Value of shares vested	$ 901,276	$ 918,555

Note 12 - Fair Value Measurem_3

Note 12 - Fair Value Measurements (Details Textual) - USD ($)	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Impaired Financing Receivable, Recorded Investment, Total	$ 7,543,269	$ 8,720,339	$ 9,142,748
Real Estate Acquired Through Foreclosure	457,778	457,778
Fair Value, Measurements, Nonrecurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Impaired Financing Receivable, Recorded Investment, Total	7,543,269	8,720,339
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	255,863	266,256
Real Estate Acquired Through Foreclosure	$ 457,778	$ 457,778

Note 12 - Fair Value Measurem_4

Note 12 - Fair Value Measurements - Securities Available for Sale Measured On a Recurring Basis (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Investment securities available for sale, at fair value	$ 65,577,855	$ 75,404,136
Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	65,577,855	75,404,136
US Government Agencies Debt Securities [Member]
Investment securities available for sale, at fair value	727,336	2,718,649
US Government Agencies Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	727,336	2,718,649
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, at fair value	11,641,229	11,705,991
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	11,641,229	11,705,991
Corporate Debt Securities [Member]
Investment securities available for sale, at fair value	1,900,504	1,954,076
Corporate Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	1,900,504	1,954,076
Collateralized Mortgage Backed Securities [Member]
Investment securities available for sale, at fair value	51,308,786	59,025,420
Collateralized Mortgage Backed Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	51,308,786	59,025,420
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] \| US Government Agencies Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] \| Corporate Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 1 [Member] \| Collateralized Mortgage Backed Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	63,677,351	73,450,044
Fair Value, Inputs, Level 2 [Member] \| US Government Agencies Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	727,336	2,718,649
Fair Value, Inputs, Level 2 [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	11,641,229	11,705,991
Fair Value, Inputs, Level 2 [Member] \| Corporate Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 2 [Member] \| Collateralized Mortgage Backed Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	51,308,786	59,025,404
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	1,900,504	1,954,092
Fair Value, Inputs, Level 3 [Member] \| US Government Agencies Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 3 [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value
Fair Value, Inputs, Level 3 [Member] \| Corporate Debt Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value	1,900,504	1,954,076
Fair Value, Inputs, Level 3 [Member] \| Collateralized Mortgage Backed Securities [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities available for sale, at fair value		$ 16

Note 12 - Fair Value Measurem_5

Note 12 - Fair Value Measurements - Derivatives Measured On a Recurring Basis (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Offsetting Commercial Real Estate Loan by Interest Rate Swap [Member] \| Loans and Leases [Member]
Commercial real estate loan, fair value	$ 2,984,595	$ 3,022,744
Offsetting Commercial Real Estate Loan by Interest Rate Swap [Member] \| Loans and Leases [Member] \| Fair Value, Measurements, Recurring [Member]
Loans - Commercial real estate loan	2,984,595	3,022,744
Interest Rate Swap [Member]
Loans - Commercial real estate loan	123,118	217,464
Interest Rate Swap [Member] \| Other Liabilities [Member] \| Fair Value, Measurements, Recurring [Member]
Commercial real estate loan, fair value	43,107	69,148
Derivatives - Interest rate swaps designated as cash flow hedge	123,118	217,464
Fair Value, Inputs, Level 1 [Member] \| Offsetting Commercial Real Estate Loan by Interest Rate Swap [Member] \| Loans and Leases [Member] \| Fair Value, Measurements, Recurring [Member]
Loans - Commercial real estate loan
Fair Value, Inputs, Level 1 [Member] \| Interest Rate Swap [Member] \| Other Liabilities [Member] \| Fair Value, Measurements, Recurring [Member]
Commercial real estate loan, fair value
Derivatives - Interest rate swaps designated as cash flow hedge
Fair Value, Inputs, Level 2 [Member] \| Offsetting Commercial Real Estate Loan by Interest Rate Swap [Member] \| Loans and Leases [Member] \| Fair Value, Measurements, Recurring [Member]
Loans - Commercial real estate loan	2,984,595	3,022,744
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member] \| Other Liabilities [Member] \| Fair Value, Measurements, Recurring [Member]
Commercial real estate loan, fair value	43,107	69,148
Derivatives - Interest rate swaps designated as cash flow hedge	123,118	217,464
Fair Value, Inputs, Level 3 [Member] \| Offsetting Commercial Real Estate Loan by Interest Rate Swap [Member] \| Loans and Leases [Member] \| Fair Value, Measurements, Recurring [Member]
Loans - Commercial real estate loan
Fair Value, Inputs, Level 3 [Member] \| Interest Rate Swap [Member] \| Other Liabilities [Member] \| Fair Value, Measurements, Recurring [Member]
Commercial real estate loan, fair value
Derivatives - Interest rate swaps designated as cash flow hedge

Note 12 - Fair Value Measurem_6

Note 12 - Fair Value Measurements - Valuation and Unobservable Inputs for Level 3 Assets (Details)	Dec. 31, 2018USD ($)	Mar. 31, 2018USD ($)
Fair Value, Measurements, Nonrecurring [Member]
Impaired Loans, Net of Allowance, Fair Value Disclosure, Nonrecurring	$ 7,289,458	$ 8,454,083
Foreclosed Real Estate, Fair Value Disclosure, Nonrecurring	457,778	457,778
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Impaired Loans, Net of Allowance, Fair Value Disclosure, Nonrecurring	7,289,458	8,454,083
Foreclosed Real Estate, Fair Value Disclosure, Nonrecurring	457,778	$ 457,778
Fair Value, Inputs, Level 3 [Member] \| Valuation, Market Approach [Member] \| Fair Value, Measurements, Recurring [Member]
Investment securities, fair value	$ 1,900,504
Fair Value, Inputs, Level 3 [Member] \| Valuation, Market Approach [Member] \| Fair Value, Measurements, Recurring [Member] \| Minimum [Member] \| Measurement Input, Discount Rate [Member]
Investment securities, discount rate	0
Impaired loans, net of allowance, discount rate	0
Fair Value, Inputs, Level 3 [Member] \| Valuation, Market Approach [Member] \| Fair Value, Measurements, Recurring [Member] \| Maximum [Member] \| Measurement Input, Discount Rate [Member]
Investment securities, discount rate	0.1
Impaired loans, net of allowance, discount rate	0.25
Fair Value, Inputs, Level 3 [Member] \| Valuation, Market Approach [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Impaired Loans, Net of Allowance, Fair Value Disclosure, Nonrecurring	$ 7,289,458
Foreclosed Real Estate, Fair Value Disclosure, Nonrecurring	$ 457,778
Fair Value, Inputs, Level 3 [Member] \| Valuation, Market Approach [Member] \| Fair Value, Measurements, Nonrecurring [Member] \| Minimum [Member] \| Measurement Input, Discount Rate [Member]
Foreclosed real estate, discount rate	0
Fair Value, Inputs, Level 3 [Member] \| Valuation, Market Approach [Member] \| Fair Value, Measurements, Nonrecurring [Member] \| Maximum [Member] \| Measurement Input, Discount Rate [Member]
Foreclosed real estate, discount rate	0.25
Fair Value, Inputs, Level 3 [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Fair Value, Measurements, Nonrecurring [Member] \| Minimum [Member] \| Measurement Input, Discount Rate [Member]
Impaired loans, net of allowance, discount rate	0.0263
Fair Value, Inputs, Level 3 [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Fair Value, Measurements, Nonrecurring [Member] \| Maximum [Member] \| Measurement Input, Discount Rate [Member]
Impaired loans, net of allowance, discount rate	0.0725

Note 12 - Fair Value Measurem_7

Note 12 - Fair Value Measurements - Reconciliation of Investments at Fair Value on Recurring Basis (Details) - USD ($)	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Mar. 31, 2018
Balance, beginning of year	$ 1,954,092	$ 1,930,786
Change in valuation	(53,572)
Balance, end of year	1,900,504	1,954,092
Corporate Bond Securities [Member]
Transfers in		1,954,076
Transfers out
Collateralized Mortgage Backed Securities [Member]
Transfers in		16
Transfers out	16	2,473
Municipal Bonds [Member]
Transfers in
Transfers out		$ 1,928,313

Note 12 - Fair Value Measurem_8

Note 12 - Fair Value Measurements - Measurements On Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Impaired loans	$ 7,289,458	$ 8,454,083
Foreclosed real estate	457,778	457,778
Fair Value, Inputs, Level 1 [Member]
Impaired loans
Foreclosed real estate
Fair Value, Inputs, Level 2 [Member]
Impaired loans
Foreclosed real estate
Fair Value, Inputs, Level 3 [Member]
Impaired loans	7,289,458	8,454,083
Foreclosed real estate	$ 457,778	$ 457,778

Note 12 - Fair Value Measurem_9

Note 12 - Fair Value Measurements - Reconciliation of Foreclosed Real Estate, Measured On Nonrecurring Basis Using Significant Unobservable Inputs (Details) - USD ($)	9 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Transfer to foreclosed real estate	$ 145,820	$ 17,305
Fair Value, Inputs, Level 3 [Member]
Balance at beginning of period	457,778	$ 503,094	$ 503,094
Transfer to foreclosed real estate	150,052		23,834
Write-down of foreclosed real estate			(31,955)
Proceeds from sale of foreclosed real estate	(145,820)		(35,896)
Loss on sale of foreclosed real estate	(4,232)		(1,299)
Balance at end of period	$ 457,778		$ 457,778

Note 12 - Fair Value Measure_10

Note 12 - Fair Value Measurements - Financial Assets and Liabilities Measured On a Recurring Basis (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Financial assets
Loans receivable, net of unearned income	$ 369,456,616	$ 390,420,885
Fair Value, Inputs, Level 1 [Member] \| Reported Value Measurement [Member]
Financial assets
Cash and cash equivalents	26,547,840	23,368,415
Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value Measurement [Member]
Financial assets
Cash and cash equivalents	26,547,840	23,368,415
Fair Value, Inputs, Level 2 [Member] \| Reported Value Measurement [Member]
Financial assets
Federal Home Loan Bank stock	2,676,200	3,122,400
Bank-owned life insurance	17,799,920	17,455,850
Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value Measurement [Member]
Financial assets
Federal Home Loan Bank stock	2,676,200	3,122,400
Bank-owned life insurance	17,799,920	17,455,850
Fair Value, Inputs, Level 3 [Member] \| Reported Value Measurement [Member]
Financial assets
Certificates of deposit held as investment	499,121	499,189
Loans receivable, net of unearned income	366,428,914	387,328,993
Deposits	384,170,942	405,142,975
Advance payments by borrowers for taxes and insurance	1,059,677	1,962,665
Borrowings, fair value	51,050,000	60,672,140
Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value Measurement [Member]
Financial assets
Certificates of deposit held as investment	485,928	492,751
Loans receivable, net of unearned income	352,433,858	385,818,260
Deposits	385,031,487	405,026,957
Advance payments by borrowers for taxes and insurance	1,059,677	1,962,665
Borrowings, fair value	$ 50,394,636	$ 60,494,922