CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings
Balance at beginning (in shares) at Jun. 30, 2020		16,667,572	295,615
Balances at beginning at Jun. 30, 2020	$ 29,578	$ 168	$ (1,554)	$ 30,203	$ 761
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	68,531	68,531
Exercise of stock options	$ 311	$ 1		310
Stock-based compensation	302			302
Issuance of restricted stock (in shares)		63,599
Issuance of restricted stock	0	$ 1		(1)
Net income	935				935
Balance at end (in shares) at Dec. 31, 2020		16,799,702	295,615
Balances at end at Dec. 31, 2020	31,126	$ 170	$ (1,554)	30,814	1,696
Balance at beginning (in shares) at Sep. 30, 2020		16,718,103	295,615
Balances at beginning at Sep. 30, 2020	$ 29,578	$ 169	$ (1,554)	30,589	468
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	18,000	18,000
Exercise of stock options	$ 86			86
Stock-based compensation	140			140
Issuance of restricted stock (in shares)		63,599
Issuance of restricted stock	0	$ 1		(1)
Net income	1,228				1,228
Balance at end (in shares) at Dec. 31, 2020		16,799,702	295,615
Balances at end at Dec. 31, 2020	31,126	$ 170	$ (1,554)	30,814	1,696
Balance at beginning (in shares) at Jun. 30, 2021		17,454,859	295,615
Balances at beginning at Jun. 30, 2021	$ 46,584	$ 176	$ (1,554)	34,333	13,629
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	0
Exercise of stock options	$ 0
Issuance of common stock pursuant to secondary offering, net (in shares)		2,070,000
Issuance of common stock pursuant to secondary offering, net	16,771	$ 21		16,750
Stock-based compensation	629			629
Issuance of restricted stock (in shares)		17,999
Net income	647				647
Balance at end (in shares) at Dec. 31, 2021		19,542,858	295,615
Balances at end at Dec. 31, 2021	64,631	$ 197	$ (1,554)	51,712	14,276
Balance at beginning (in shares) at Sep. 30, 2021		19,524,859	295,615
Balances at beginning at Sep. 30, 2021	$ 62,845	$ 197	$ (1,554)	51,363	12,839
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	0
Exercise of stock options	$ 0
Stock-based compensation	349			349
Issuance of restricted stock (in shares)		17,999
Net income	1,437				1,437
Balance at end (in shares) at Dec. 31, 2021		19,542,858	295,615
Balances at end at Dec. 31, 2021	$ 64,631	$ 197	$ (1,554)	$ 51,712	$ 14,276