Stock-Based Compensation - Summary of the activity of restricted stock awards (Details) - Restricted Stock [Member]	12 Months Ended
	Jun. 30, 2020 $ / shares shares
Non-vested at July 1, 2019 (in shares) | shares	167,500
SARs granted | shares	100,026
Vested, Shares (in shares) | shares	(58,336)
Forfeited, Shares (in shares) | shares	(5,000)
Non-vested at June 30, 2020 (in shares) | shares	204,190
Non-vested, Weighted Average Grant Date Fair Value at July 1, 2019 (in dollars per share) | $ / shares	$ 4.15
Granted, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	4.90
Vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	4.13
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	5.42
Non-vested at, Weighted Average Grant Date Fair Value at June 30, 2020 (in dollars per share) | $ / shares	$ 4.41