CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)
Balance at beginning (in shares) at Jun. 30, 2018		16,377,636	(295,615)
Balances at beginning at Jun. 30, 2018	$ 25,174	$ 164	$ (1,554)	$ 28,621	$ (2,057)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	0
Stock-based compensation	$ 191			191
Issuance of restricted stock (in shares)		52,992
Issuance of restricted stock	0	$ 1		(1)
Net income	849				849
Balance at end (in shares) at Dec. 31, 2018		16,430,628	(295,615)
Balances at end at Dec. 31, 2018	26,552	$ 165	$ (1,554)	28,811	(870)
Balance at beginning (in shares) at Sep. 30, 2018		16,377,636	(295,615)
Balances at beginning at Sep. 30, 2018	$ 25,683	$ 164	$ (1,554)	28,722	(1,649)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	0
Stock-based compensation	$ 90			90
Issuance of restricted stock (in shares)		52,992
Issuance of restricted stock	0	$ 1		(1)
Net income	779				779
Balance at end (in shares) at Dec. 31, 2018		16,430,628	(295,615)
Balances at end at Dec. 31, 2018	26,552	$ 165	$ (1,554)	28,811	(870)
Balance at beginning (in shares) at Jun. 30, 2019		16,433,128	(295,615)
Balances at beginning at Jun. 30, 2019	$ 26,126	$ 165	$ (1,554)	29,020	(1,505)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	19,350	19,350
Exercise of stock options	$ 58			58
Stock-based compensation	225			225
Issuance of restricted stock (in shares)		72,000
Issuance of restricted stock	0	$ 1		(1)
Net income	1,656				1,656
Balance at end (in shares) at Dec. 31, 2019		16,524,478	(295,615)
Balances at end at Dec. 31, 2019	28,065	$ 166	$ (1,554)	29,302	151
Balance at beginning (in shares) at Sep. 30, 2019		16,442,328	(295,615)
Balances at beginning at Sep. 30, 2019	$ 26,944	$ 165	$ (1,554)	29,152	(819)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	10,150	10,150
Exercise of stock options	$ 30			30
Stock-based compensation	121			121
Issuance of restricted stock (in shares)		72,000
Issuance of restricted stock	0	$ 1		(1)
Net income	970				970
Balance at end (in shares) at Dec. 31, 2019		16,524,478	(295,615)
Balances at end at Dec. 31, 2019	$ 28,065	$ 166	$ (1,554)	$ 29,302	$ 151