CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Sub-Total ASHS	Non-controlling Interests in Subsidiaries
Beginning balance at Dec. 31, 2017	$ 29,885	$ 10,711	$ 6,272	$ 6,873	$ 23,856	$ 6,029
Beginning balance (in shares) at Dec. 31, 2017		5,710
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	55	$ 0	55	0	55	0
Stock-based compensation expense (in shares)		0
Net income	651	$ 0	0	390	390	261
Ending balance at Mar. 31, 2018	30,591	$ 10,711	6,327	7,263	24,301	6,290
Ending balance (in shares) at Mar. 31, 2018		5,710
Beginning balance at Dec. 31, 2017	29,885	$ 10,711	6,272	6,873	23,856	6,029
Beginning balance (in shares) at Dec. 31, 2017		5,710
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,151
Ending balance at Jun. 30, 2018	31,071	$ 10,711	6,384	7,550	24,645	6,426
Ending balance (in shares) at Jun. 30, 2018		5,714
Beginning balance at Mar. 31, 2018	30,591	$ 10,711	6,327	7,263	24,301	6,290
Beginning balance (in shares) at Mar. 31, 2018		5,710
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	57	$ 0	57	0	57	0
Stock-based compensation expense (in shares)		4
Cash distributions to non-controlling interests	(77)	$ 0	0	0	0	(77)
Net income	500	0	0	287	287	213
Ending balance at Jun. 30, 2018	31,071	$ 10,711	6,384	7,550	24,645	6,426
Ending balance (in shares) at Jun. 30, 2018		5,714
Beginning balance at Dec. 31, 2018	31,048	$ 10,711	6,495	7,896	25,102	5,946
Beginning balance (in shares) at Dec. 31, 2018		5,714
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	55	$ 0	55	0	55	0
Stock-based compensation expense (in shares)		0
Cash distributions to non-controlling interests	(19)	$ 0	0	0	0	(19)
Net income	395	0	0	270	270	125
Ending balance at Mar. 31, 2019	31,479	$ 10,711	6,550	8,166	25,427	6,052
Ending balance (in shares) at Mar. 31, 2019		5,714
Beginning balance at Dec. 31, 2018	31,048	$ 10,711	6,495	7,896	25,102	5,946
Beginning balance (in shares) at Dec. 31, 2018		5,714
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	674
Ending balance at Jun. 30, 2019	31,754	$ 10,711	6,603	8,197	25,511	6,243
Ending balance (in shares) at Jun. 30, 2019		5,816
Beginning balance at Mar. 31, 2019	31,479	$ 10,711	6,550	8,166	25,427	6,052
Beginning balance (in shares) at Mar. 31, 2019		5,714
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	53	$ 0	53	0	53	0
Stock-based compensation expense (in shares)		102
Cash distributions to non-controlling interests	(57)	$ 0	0	0	0	(57)
Net income	279	0	0	31	31	248
Ending balance at Jun. 30, 2019	$ 31,754	$ 10,711	$ 6,603	$ 8,197	$ 25,511	$ 6,243
Ending balance (in shares) at Jun. 30, 2019		5,816