CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Cumulative effect of new accounting standard	Cumulative effect of new accounting standard Retained Earnings (Accumulated Deficit)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of new accounting standard	$ 25,174	$ 164	$ (1,554)	$ 28,621	$ (2,057)	$ 338	$ 338
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)	338	338
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	0
Exercise of stock options	$ 0
Stock-based compensation	303			303
Issuance of restricted stock (in shares)		60,492
Issuance of restricted stock	0	$ 1		(1)
Cumulative effect of new accounting standard	25,539	$ 165	$ (1,554)	28,923	(1,995)	$ 338	$ 338
Net income (loss)	(276)				(276)
Balance at end (in shares) at Mar. 31, 2019		16,438,128	(295,615)
Balances at end at Mar. 31, 2019	25,539	$ 165	$ (1,554)	28,923	(1,995)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of new accounting standard	26,552	$ 165	$ (1,554)	28,811	(870)
Balance at beginning (in shares) at Dec. 31, 2018		16,430,628	(295,615)
Balances at beginning at Dec. 31, 2018	$ 26,552	$ 165	$ (1,554)	28,811	(870)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	0
Exercise of stock options	$ 0
Stock-based compensation	112			112
Issuance of restricted stock (in shares)		7,500
Issuance of restricted stock	0
Cumulative effect of new accounting standard	25,539	$ 165	$ (1,554)	28,923	(1,995)
Net income (loss)	(1,125)				(1,125)
Balance at end (in shares) at Mar. 31, 2019		16,438,128	(295,615)
Balances at end at Mar. 31, 2019	25,539	$ 165	$ (1,554)	28,923	(1,995)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of new accounting standard	25,539	165	(1,554)	28,923	(1,995)
Cumulative effect of new accounting standard	26,126	$ 165	$ (1,554)	29,020	(1,505)
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)	134,194	134,194
Exercise of stock options	$ 576	$ 1		575
Stock-based compensation	372			372
Issuance of restricted stock (in shares)		72,000
Issuance of restricted stock	0	$ 1		(1)
Cumulative effect of new accounting standard	27,174	$ 167	$ (1,554)	29,966	(1,405)
Net income (loss)	100				100
Balance at end (in shares) at Mar. 31, 2020		16,639,322	(295,615)
Balances at end at Mar. 31, 2020	27,174	$ 167	$ (1,554)	29,966	(1,405)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of new accounting standard	28,065	$ 166	$ (1,554)	29,302	151
Balance at beginning (in shares) at Dec. 31, 2019		16,524,478	(295,615)
Balances at beginning at Dec. 31, 2019	$ 28,065	$ 166	$ (1,554)	29,302	151
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	114,844	114,844
Exercise of stock options	$ 518	$ 1		517
Stock-based compensation	147			147
Issuance of restricted stock (in shares)		0
Issuance of restricted stock	0
Cumulative effect of new accounting standard	27,174	$ 167	$ (1,554)	29,966	(1,405)
Net income (loss)	(1,556)				(1,556)
Balance at end (in shares) at Mar. 31, 2020		16,639,322	(295,615)
Balances at end at Mar. 31, 2020	27,174	$ 167	$ (1,554)	29,966	(1,405)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of new accounting standard	$ 27,174	$ 167	$ (1,554)	$ 29,966	$ (1,405)