CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Sub-Total ASHS	Non-controlling Interests in Subsidiaries
Balance at beginning at Dec. 31, 2018	$ 31,048	$ 10,711	$ 6,495	$ 7,896	$ 25,102	$ 5,946
Balance at beginning (in shares) at Dec. 31, 2018		5,714,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	230		230		230
Stock-based compensation expense (in shares)		4,000
Options exercised	$ 42	$ 42			42
Options exercised (in shares)	16,000	16,000
Issuance of restricted stock awards (in shares)		83,000
Cash distributions to non-controlling interests	$ (939)					(939)
Net income	1,430			659	659	771
Balance at end at Dec. 31, 2019	31,811	$ 10,753	6,725	8,555	26,033	5,778
Balance at end (in shares) at Dec. 31, 2019		5,817,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 299		299		299
Stock-based compensation expense (in shares)		103,000
Options exercised (in shares)	0
Cash distributions to non-controlling interests	$ (761)					(761)
Net income	(7,716)			(7,058)	(7,058)	(658)
NCI investment in acquisition	$ 17					17
Restricted common shares returned to plan (in shares)	(129,000)
Balance at end at Dec. 31, 2020	$ 23,650	$ 10,753	$ 7,024	$ 1,497	$ 19,274	$ 4,376
Balance at end (in shares) at Dec. 31, 2020		5,791,000