CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Jun. 30, 2019	$ 4	$ 133,266	$ 168,926	$ (86,181)	$ 216,015
Balance (in shares) at Jun. 30, 2019	40,453,608
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)			2,515	(7,547)	(5,032)
Dividends declared			(4,854)		(4,854)
Stock-based compensation expense		565			565
Balance at Sep. 30, 2019	$ 4	133,831	166,587	(93,728)	206,694
Balance (in shares) at Sep. 30, 2019	40,453,608
Balance at Jun. 30, 2019	$ 4	133,266	168,926	(86,181)	216,015
Balance (in shares) at Jun. 30, 2019	40,453,608
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)					9,980
Balance at Dec. 31, 2019	$ 4	134,395	173,626	(90,610)	217,415
Balance (in shares) at Dec. 31, 2019	40,453,608
Balance at Sep. 30, 2019	$ 4	133,831	166,587	(93,728)	206,694
Balance (in shares) at Sep. 30, 2019	40,453,608
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)			11,894	3,118	15,012
Dividends declared			(4,855)		(4,855)
Stock-based compensation expense		564			564
Balance at Dec. 31, 2019	$ 4	134,395	173,626	(90,610)	217,415
Balance (in shares) at Dec. 31, 2019	40,453,608
Balance at Jun. 30, 2020	$ 4	135,525	183,060	(130,385)	188,204
Balance (in shares) at Jun. 30, 2020	40,453,608
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)			12,302	(3,805)	8,497
Dividends declared			(4,854)		(4,854)
Stock-based compensation expense		565			565
Balance at Sep. 30, 2020	$ 4	136,090	190,508	(134,190)	192,412
Balance (in shares) at Sep. 30, 2020	40,453,608
Balance at Jun. 30, 2020	$ 4	135,525	183,060	(130,385)	188,204
Balance (in shares) at Jun. 30, 2020	40,453,608
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)					33,698
Balance at Dec. 31, 2020	$ 4	136,654	198,454	(121,790)	213,322
Balance (in shares) at Dec. 31, 2020	40,453,608
Balance at Sep. 30, 2020	$ 4	136,090	190,508	(134,190)	192,412
Balance (in shares) at Sep. 30, 2020	40,453,608
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)			12,801	12,400	25,201
Dividends declared			(4,855)		(4,855)
Stock-based compensation expense		564			564
Balance at Dec. 31, 2020	$ 4	$ 136,654	$ 198,454	$ (121,790)	$ 213,322
Balance (in shares) at Dec. 31, 2020	40,453,608

Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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