Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock Including Additional Paid in Capital [Member]	Treasury Stock, Common [Member]	Key Executive Deferred Compensation [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares)	28,488	(922)
Balance (in shares) at Jun. 30, 2023	28,488	(922)
Balance at Jun. 30, 2023	$ 148,691	$ (7,166)	$ 7,166	$ 339	$ 28,548	$ 177,578
Net Income	0	0	0	0	8,028	8,028
Other comprehensive gain (loss)	$ 0	$ 0	0	(56)	0	(56)
Board stock compensation (in shares)	9	0
Board stock compensation	$ 113	$ 0	0	0	0	113
ESPP stock Awards (in shares)	3
ESPP stock Awards	$ 57					57
Shares issued for deferred compensation (in shares)	32	0
Shares issued for deferred compensation	$ 437	$ 0	0	0	0	437
Activity of treasury shares, net (in shares)	0	30
Activity of treasury shares, net	$ 0	$ 417	0	0	0	417
Deferred stock compensation	$ 0	0	417	0	0	417
Stock-based compensation expense		$ 0	0	0	0	1,220
Stock options exercised, net (in shares)	70	0
Stock options exercised, net	$ 549	$ 0	0	0	0	549
Dividends	0	0	0	0	(1,380)	(1,380)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0	0	0	(56)	0	(56)
Balance at Sep. 30, 2023	$ 151,067	$ (7,583)	7,583	283	35,196	186,546
Balance (in shares) at Sep. 30, 2023	28,878	(952)
Balance (in shares) at Jun. 30, 2023	28,488	(922)
Balance at Jun. 30, 2023	$ 148,691	$ (7,166)	7,166	339	28,548	177,578
Net Income						13,934
Balance at Dec. 31, 2023	$ 152,924	$ (8,088)	8,088	354	39,656	192,934
Balance (in shares) at Dec. 31, 2023	29,060	(988)
Balance (in shares)	28,878	(952)
Balance (in shares) at Sep. 30, 2023	28,878	(952)
Balance at Sep. 30, 2023	$ 151,067	$ (7,583)	7,583	283	35,196	186,546
Net Income					5,906	5,906
Other comprehensive gain (loss)		$ 0	0	0	71	71
Board stock compensation (in shares)	7
Board stock compensation	$ 112			0		112
ESPP stock Awards (in shares)	4	0
ESPP stock Awards	$ 41	$ 0	0	0	0	41
Shares issued for deferred compensation (in shares)	36
Shares issued for deferred compensation	$ 506					506
Activity of treasury shares, net (in shares)		(36)
Activity of treasury shares, net		$ (505)				(505)
Deferred stock compensation			505			505
Stock-based compensation expense	$ 814					814
Stock options exercised, net (in shares)	107
Stock options exercised, net	$ 628					628
Dividends					(1,446)	(1,446)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent		0	0	0	71	71
Balance at Dec. 31, 2023	$ 152,924	$ (8,088)	8,088	354	39,656	192,934
Balance (in shares) at Dec. 31, 2023	29,060	(988)
Balance (in shares)	29,060	(988)
Balance (in shares)	29,222	(1,036)
Balance (in shares) at Jun. 30, 2024	29,222	(1,036)
Balance at Jun. 30, 2024	$ 156,365	$ (8,895)	8,895	202	47,788	204,355
Net Income	0	0	0	0	6,682	6,682
Other comprehensive gain (loss)	$ 0	$ 0	0	(109)	0	(109)
Board stock compensation (in shares)	8	0
Board stock compensation	$ 113	$ 0	0	0	0	113
ESPP stock Awards (in shares)	3	0
ESPP stock Awards	$ 45	$ 0	0	0	0	45
Shares issued for deferred compensation (in shares)	32	0
Shares issued for deferred compensation	$ 487	$ 0	0	0	0	487
Activity of treasury shares, net (in shares)	0	42
Activity of treasury shares, net	$ 0	$ 140	0	0	0	140
Deferred stock compensation	$ 0	0	(140)	0	0	(140)
Stock-based compensation expense		$ 0	0	0	0	1,047
Stock options exercised, net (in shares)	39	0
Stock options exercised, net	$ 248	$ 0	0	0	0	248
Dividends	0	0	0	0	(1,481)	(1,481)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ 0	$ 0	0	(109)	0	(109)
Restricted stock units issued, net of shares withheld for tax withholdings (in shares)	492	0
Restricted stock units issued, net of shares withheld for tax withholdings	$ (204)	$ 0	0	0	0	(204)
Balance at Sep. 30, 2024	$ 158,101	$ (8,755)	8,755	93	52,989	211,183
Balance (in shares) at Sep. 30, 2024	29,796	(994)
Balance (in shares) at Jun. 30, 2024	29,222	(1,036)
Balance at Jun. 30, 2024	$ 156,365	$ (8,895)	8,895	202	47,788	204,355
Net Income						12,329
Balance at Dec. 31, 2024	$ 159,926	$ (9,261)	9,261	45	57,144	217,115
Balance (in shares) at Dec. 31, 2024	29,891	(1,022)
Balance (in shares)	29,796	(994)
Balance (in shares) at Sep. 30, 2024	29,796	(994)
Balance at Sep. 30, 2024	$ 158,101	$ (8,755)	8,755	93	52,989	211,183
Net Income					5,647	5,647
Other comprehensive gain (loss)				(48)		(48)
Board stock compensation (in shares)	7
Board stock compensation	$ 112					112
ESPP stock Awards (in shares)	5
ESPP stock Awards	$ 65					65
Shares issued for deferred compensation (in shares)	27
Shares issued for deferred compensation	$ 507					507
Activity of treasury shares, net (in shares)		(28)
Activity of treasury shares, net		$ (506)				(506)
Deferred stock compensation			506			506
Stock-based compensation expense	$ 1,141					1,141
Stock options exercised, net (in shares)	30
Stock options exercised, net	$ 374					374
Dividends					(1,492)	(1,492)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent				(48)		(48)
Restricted stock units issued, net of shares withheld for tax withholdings (in shares)	26
Restricted stock units issued, net of shares withheld for tax withholdings	$ (374)					(374)
Balance at Dec. 31, 2024	$ 159,926	$ (9,261)	$ 9,261	$ 45	$ 57,144	$ 217,115
Balance (in shares) at Dec. 31, 2024	29,891	(1,022)
Balance (in shares)	29,891	(1,022)