Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balances (in shares) at Jun. 30, 2014	2,042
Balances at Jun. 30, 2014	$ 18,943	$ 1	$ (9,821)	$ 9,123
Share-based compensation	96			96
Net loss			(1,308)	(1,308)
Change in unrealized loss on investments		(1)		(1)
Balances (in shares) at Jun. 30, 2015	2,042
Balances at Jun. 30, 2015	$ 19,039		(11,129)	7,910
Share-based compensation	22			22
Net loss			(1,885)	(1,885)
Change in unrealized loss on investments
Balances (in shares) at Dec. 31, 2015	2,042
Balances at Dec. 31, 2015	$ 19,061		(13,014)	6,047
Share-based compensation	2			2
Net loss			(1,210)	(1,210)
Change in unrealized loss on investments
Balances (in shares) at Dec. 31, 2016	2,042
Balances at Dec. 31, 2016	$ 19,063		$ (14,224)	$ 4,839