CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Total
Beginning balance at Jun. 30, 2019	$ 416	$ 22,441	$ (3,710)	$ 57,255	$ 228	$ 76,630
Beginning balance (in shares) at Jun. 30, 2019	3,980,154
Increase (Decrease) in Stockholders' Equity
Net income				854		854
Other comprehensive income (loss)					(190)	(190)
Dividend paid				(1,983)		(1,983)
Ending balance at Sep. 30, 2019	$ 416	22,441	(3,710)	56,126	38	75,311
Ending balance (in shares) at Sep. 30, 2019	3,980,154
Beginning balance at Jun. 30, 2019	$ 416	22,441	(3,710)	57,255	228	76,630
Beginning balance (in shares) at Jun. 30, 2019	3,980,154
Increase (Decrease) in Stockholders' Equity
Net income						1,783
Other comprehensive income (loss)						(424)
Ending balance at Dec. 31, 2019	$ 416	22,441	(3,710)	57,055	(196)	76,006
Ending balance (in shares) at Dec. 31, 2019	3,980,154
Beginning balance at Sep. 30, 2019	$ 416	22,441	(3,710)	56,126	38	75,311
Beginning balance (in shares) at Sep. 30, 2019	3,980,154
Increase (Decrease) in Stockholders' Equity
Net income				929		929
Other comprehensive income (loss)					(234)	(234)
Ending balance at Dec. 31, 2019	$ 416	22,441	(3,710)	57,055	(196)	76,006
Ending balance (in shares) at Dec. 31, 2019	3,980,154
Beginning balance at Jun. 30, 2020	$ 467	42,932	(3,710)	56,600	76	$ 96,365
Beginning balance (in shares) at Jun. 30, 2020	4,489,345					4,489,345
Increase (Decrease) in Stockholders' Equity
Net income				670		$ 670
Other comprehensive income (loss)					357	357
Dividend paid				(1,886)		(1,886)
Ending balance at Sep. 30, 2020	$ 467	42,932	(3,710)	55,384	433	95,506
Ending balance (in shares) at Sep. 30, 2020	4,489,345
Beginning balance at Jun. 30, 2020	$ 467	42,932	(3,710)	56,600	76	$ 96,365
Beginning balance (in shares) at Jun. 30, 2020	4,489,345					4,489,345
Increase (Decrease) in Stockholders' Equity
Net income						$ 2,046
Other comprehensive income (loss)						664
Ending balance at Dec. 31, 2020	$ 467	42,932	(3,710)	56,760	740	$ 97,189
Ending balance (in shares) at Dec. 31, 2020	4,489,345					4,489,345
Beginning balance at Sep. 30, 2020	$ 467	42,932	(3,710)	55,384	433	$ 95,506
Beginning balance (in shares) at Sep. 30, 2020	4,489,345
Increase (Decrease) in Stockholders' Equity
Net income				1,376		1,376
Other comprehensive income (loss)					307	307
Ending balance at Dec. 31, 2020	$ 467	$ 42,932	$ (3,710)	$ 56,760	$ 740	$ 97,189
Ending balance (in shares) at Dec. 31, 2020	4,489,345					4,489,345