CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Deficit
Balance at beginning (in shares) at Jun. 30, 2017		16,304,027	295,615
Balances at beginning at Jun. 30, 2017	$ 25,287	$ 163	$ (1,554)	$ 28,063	$ (1,385)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	375			375
Issuance of restricted stock (in shares)		52,992
Issuance of restricted stock	0	$ 1		(1)
Net loss	(526)				(526)
Issuance of common shares for lease (in shares)		20,617
Issuance of common shares for lease	83			83
Balance at end (in shares) at Mar. 31, 2018		16,377,636	295,615
Balances at end at Mar. 31, 2018	25,219	$ 164	$ (1,554)	28,520	(1,911)
Balance at beginning (in shares) at Jun. 30, 2017		16,304,027	295,615
Balances at beginning at Jun. 30, 2017	$ 25,287	$ 163	$ (1,554)	28,063	(1,385)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares for lease (in shares)	20,617
Balance at end (in shares) at Jun. 30, 2018		16,377,636	295,615
Balances at end at Jun. 30, 2018	$ 25,174	$ 164	$ (1,554)	28,621	(2,057)
Balance at beginning (in shares) at Dec. 31, 2017		16,377,636	295,615
Balances at beginning at Dec. 31, 2017	25,862	$ 164	$ (1,554)	28,406	(1,154)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	114			114
Net loss	(757)				(757)
Balance at end (in shares) at Mar. 31, 2018		16,377,636	295,615
Balances at end at Mar. 31, 2018	25,219	$ 164	$ (1,554)	28,520	(1,911)
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]
Stock-based compensation	303			303
Issuance of restricted stock (in shares)		60,492
Issuance of restricted stock	0	$ 1
Net 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)
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]
Stock-based compensation	112			112
Issuance of restricted stock (in shares)		7,500
Issuance of restricted stock	0
Net 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)