Segment Information (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment reporting information revenue [Abstract]
Revenues		$ 4,061,276	$ 15,190,600	$ 8,980,767	$ 30,837,065
Depreciation		1,677,033	2,070,007	3,351,761	4,144,514
Interest expense		55,462	56,628	111,176	113,971
Net income (loss)		(680,182)	1,226,570	(1,524,275)	2,469,004
Identifiable long-lived tangible assets by segment		47,276,301		47,276,301		$ 51,753,964
Identifiable long-lived tangible assets by geographical location		47,276,301		47,276,301		51,753,964
Dyeing and Finishing Equipment [Member]
Segment reporting information revenue [Abstract]
Revenues		3,917,882	8,612,954	8,444,582	15,136,306
Depreciation		1,013,625	859,913	1,968,904	1,721,997
Interest expense		32,344	36,255	64,954	71,913
Net income (loss)		139,789	1,161,616	508,244	1,909,832
Identifiable long-lived tangible assets by segment		23,614,343		23,614,343		25,782,801
Forged Rolled Rings and Related Components [Member]
Segment reporting information revenue [Abstract]
Revenues		143,394	2,999,002	405,449	10,272,614
Depreciation		663,408	703,626	1,325,963	1,402,067
Interest expense		12,123	6,901	24,365	15,005
Net income (loss)		(682,773)	(25,075)	(1,380,851)	588,588
Identifiable long-lived tangible assets by segment		12,854,879		12,854,879		14,212,045
Petroleum and Chemical Equipment [Member]
Segment reporting information revenue [Abstract]
Revenues			3,578,644	130,736	5,428,145
Depreciation			506,468	56,894	1,020,450
Interest expense		10,995	13,472	21,857	27,053
Net income (loss)		(66,532)	159,435	(108,968)	385,864
Identifiable long-lived tangible assets by segment		10,807,079		10,807,079		11,759,118
Other [Member]
Segment reporting information revenue [Abstract]
Net income (loss)	[1]	(70,666)	$ (69,406)	(542,700)	$ (415,280)
China [Member]
Segment reporting information revenue [Abstract]
Identifiable long-lived tangible assets by geographical location		47,276,301		47,276,301		51,753,964
United States [Member]
Segment reporting information revenue [Abstract]
Identifiable long-lived tangible assets by geographical location

[1] The Company does not allocate any general and administrative expense of its U.S. activities to its reportable segments, because these activities are managed at a corporate level.