UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) [Abstract]
Revenue	$ 11,075,840	$ 12,268,259	$ 22,138,850	$ 24,609,186
Cost of revenue	8,686,841	9,935,468	17,406,966	18,975,045
Gross profit	2,388,999	2,332,791	4,731,884	5,634,141
Operating expenses
Selling general and administration	2,524,588	4,840,272	5,403,530	7,873,727
Acquisition related expenses	0	175,136	10,000	384,480
Depreciation and amortization	809,282	825,657	1,630,018	1,514,757
Operating expenses	3,333,870	5,841,065	7,043,548	9,772,964
Operating (loss)	(944,871)	(3,508,274)	(2,311,664)	(4,138,823)
Interest expense	(182,521)	(164,343)	(393,680)	(255,149)
Changes in estimates	(134,619)	400,000	(134,619)	400,000
Others, net	1,790	8,624	7,989	4,475
(Loss) before income taxes	(1,260,221)	(3,263,993)	(2,831,974)	(3,989,497)
Tax benefit / (provision)	0	0	0	0
(Loss) after income taxes	(1,260,221)	(3,263,993)	(2,831,974)	(3,989,497)
Net income attributable to non-controlling interest	0	(15,388)	0	(11,872)
Net (loss) attributable to the Company	(1,260,221)	(3,279,381)	(2,831,974)	(4,001,369)
Dividend on preferred stock	(104,136)	(504,826)	(661,553)	(1,004,791)
Net (loss) attributable to common stockholders	(1,364,357)	(3,784,207)	(3,493,527)	(5,006,160)
Other comprehensive income (loss), net of tax
Foreign exchange translation	(32,310)	(2,185)	(2,519)	3,150
Comprehensive (loss)	(1,396,667)	(3,786,392)	(3,496,046)	(5,003,010)
Comprehensive (loss) attributable to the Company	(1,396,667)	(3,771,004)	(3,496,046)	(4,991,138)
Comprehensive income/(loss) attributable to the non-controlling interest	0	(15,388)	0	(11,872)
Comprehensive (loss)	$ (1,396,667)	$ (3,786,392)	$ (3,496,046)	$ (5,003,010)
Basic (loss) per share (in dollars per share)	$ (0.07)	$ (0.26)	$ (0.19)	$ (0.35)
Diluted (loss) per share (in dollars per share)	$ (0.07)	$ (0.26)	$ (0.19)	$ (0.35)
Basic weighted average number of common shares outstanding (in shares)	18,790,998	14,610,609	18,678,224	14,352,573
Diluted weighted average number of common shares outstanding (in shares)	18,790,998	14,610,609	18,678,224	14,352,573