China XD Plastics (CXDC) 10-Q 11 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	5-May-15
Document And Entity Information Abstract
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Entity Registrant Name	China XD Plastics Co Ltd
Entity Central Index Key	1353970
Current Fiscal Year End Date	-19
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2015
Entity Filer Category	Accelerated Filer
Entity Units Outstanding		49,151,796

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$31,198,246	$45,456,612
Restricted cash	28,829,206	12,545,772
Time deposits	269,216,517	238,532,702
Accounts receivable, net	199,160,030	203,998,138
Amounts due from a related party	27,705	220,262
Inventories	298,917,784	249,797,244
Prepaid expenses and other current assets	15,662,270	11,253,828
Total current assets	843,011,758	761,804,558
Property, plant and equipment, net	316,039,885	318,324,600
Land use rights, net	18,824,797	11,896,542
Prepayments to equipment and construction suppliers	266,678,237	182,259,578
Other non-current assets	41,340,286	25,499,744
Total assets	1,485,894,963	1,299,785,022
Current liabilities:
Short-term bank loans, including current portion of long-term bank loans	161,005,484	99,735,422
Bills payable	27,208,472	43,389,928
Accounts payable	218,740,159	152,073,014
Income taxes payable	4,499,918	3,269,115
Accrued expenses and other current liabilities	22,281,199	24,484,583
Total current liabilities	433,735,232	322,952,062
Long-term bank loans, excluding current portion	205,538,523	174,274,446
Notes payable	148,682,290	148,617,057
Income taxes payable	15,251,469	14,025,825
Deferred income tax liabilities	16,506,164	16,951,551
Deferred income	17,722,212
Total liabilities	837,435,890	676,820,941
Redeemable Series D convertible preferred stock	97,576,465	97,576,465
Stockholders' equity:
Series B preferred stock	100	100
Common stock, US$0.0001 par value, 500,000,000 shares authorized, 49,182,284 shares and 49,172,796 shares issued, 49,161,284 shares and 49,151,796 shares outstanding as of March 31, 2015 and December 31, 2014, respectively	4,917	4,916
Treasury stock, 21,000 shares at cost	-92,694	-92,694
Additional paid-in capital	81,131,512	80,875,787
Retained earnings	457,227,732	431,823,706
Accumulated other comprehensive income	12,611,041	12,775,801
Total stockholders' equity	550,882,608	525,387,616
Commitments and contingencies
Total liabilities, redeemable convertible preferred stock and stockholders' equity	$1,485,894,963	$1,299,785,022

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	49,182,284	49,172,796
Common stock, shares outstanding	49,161,284	49,151,796
Treasury shares, shares	21,000	21,000

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Revenues	$221,926,395	$223,580,675
Cost of revenues	-173,284,119	-176,932,337
Gross profit	48,642,276	46,648,338
Selling expenses	-296,820	-122,328
General and administrative expenses	-4,964,758	-3,796,364
Research and development expenses	-5,813,863	-8,630,734
Total operating expenses	-11,075,441	-12,549,426
Operating income	37,566,835	34,098,912
Interest income	2,428,071	3,035,365
Interest expense	-10,629,353	-8,579,977
Foreign currency exchange losses	-90,415	-479,190
Gain on foreign currency forward contracts	354,519
Government grant		1,311,239
Change in fair value of warrant liability		-162,739
Total non-operating expense, net	-7,937,178	-4,875,302
Income before income taxes	29,629,657	29,223,610
Income tax expense	-4,225,631	-7,227,559
Net Income	25,404,026	21,996,051
Earnings per common share:
Basic and diluted	$0.39	$0.34
Net income	25,404,026	21,996,051
Other comprehensive loss
Foreign currency translation adjustment, net of nil income taxes	-164,760	-14,188,735
Comprehensive income	$25,239,266	$7,807,316

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net cash provided by operating activities	$37,529,772	$26,174,417
Cash flows from investing activities:
Purchase of time deposits	-110,597,161	-162,265,820
Proceeds from maturity of time deposits	80,026,889	111,155,365
Purchase of and deposits for property, plant and equipment	-86,042,231
Purchases of land use rights	-5,522,219	-1,020,326
Net cash used in investing activities	-122,134,722	-52,130,781
Cash flows from financing activities:
Proceeds from bank borrowings	203,658,524	176,935,307
Repayment of bank borrowings	-111,397,430	-215,370,999
Proceeds from issuance of the Notes		148,396,175
Payment of issuance costs of the Notes		-3,481,955
Placement of restricted cash as collateral for bank borrowings	-22,298,692	-2,786,383
Net cash provided by financing activities	69,962,402	103,692,145
Effect of foreign currency exchange rate changes on cash and cash equivalents	384,182	-2,866,506
Net increase (decrease) in cash and cash equivalents	-14,258,366	74,869,275
Cash and cash equivalents at beginning of period	45,456,612	95,545,904
Cash and cash equivalents at end of period	31,198,246	170,415,179
Supplemental disclosure of cash flow information:
Interest paid, net of capitalized interest	14,508,630	5,242,256
Income taxes paid	2,215,158	18,749,381
Non-cash investing and financing activities:
Accrual for issuance costs of the Notes		1,439,209
Accrual for purchase of equipment	$14,224	$155,285

Basis_of_presentation_signific

Basis of presentation, significant concentrations and risks	3 Months Ended
	Mar. 31, 2015
Basis Of Presentation Significant Concentrations And Risks [Abstract]
Basis of presentation, significant concentrations and risks	Note 1 - Basis of presentation, significant concentrations and risks
	(a) Basis of presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted as permitted by rules and regulations of the United States Securities and Exchange Commission (“SEC”). The condensed consolidated balance sheet as of December 31, 2014 was derived from the audited consolidated financial statements of China XD Plastics Company Limited (“China XD”) and subsidiaries (collectively, the “Company”). The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated balance sheet of the Company as of December 31, 2014, and the related consolidated statements of comprehensive income, changes in equity and cash flows for the year then ended, included in the Company's Annual Report on Form 10-K filed with the SEC on March 16, 2015.
	In the opinion of the management, all adjustments (which include normal recurring adjustments) necessary to present a fair statement of the financial position as of March 31, 2015, the results of operations and cash flows for the three-month periods ended March 31, 2015 and 2014, have been made.
	The preparation of consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include the recoverability of the carrying amounts of property, plant and equipment, the realizability of inventories, the useful lives of property, plant and equipment, the collectibility of accounts receivable, the fair values of stock-based compensation awards, and the accruals for tax uncertainties and other contingencies. The current economic environment has increased the degree of uncertainty inherent in those estimates and assumptions.
	(b) Significant concentrations and risks
	Sales concentration
	The Company sells its products primarily through approved distributors in the People's Republic of China (the “PRC”). To a lesser extent, the Company also sells its products to an overseas customer in the Republic of Korea (the “ROK”). The Company's sales are highly concentrated.  Sales to distributors and end customer, which individually exceeded 10% of the Company's revenues for the three month periods ended March 31, 2015 and 2014, are as follows:
		For the Three-Month Period Ended March 31,
		2015					2014
		US$		%			US$		%
	Distributor A, located in PRC		35,012,896		15.8	%		36,355,612		16.3	%
	Distributor B, located in PRC		32,811,834		14.8	%		32,580,215		14.6	%
	Distributor C, located in PRC		26,205,294		11.8	%		32,533,393		14.6	%
	Distributor D, located in PRC		22,658,046		10.2	%		33,197,485		14.8	%
	Distributor E, located in PRC		22,287,867		10	%		19,330,849		8.6	%
	Direct Customer F, located in ROK		34,946,900		15.7	%		-		-
	Total		173,922,837		78.3	%		153,997,554		68.9	%
	The Company expects revenues from these distributors and the customer to continue to represent a substantial portion of its revenue in the future. Any factor adversely affecting the automobile industry in the PRC and the Republic of Korea (the "ROK") or the business operations of these customers will have a material effect on the Company's business, financial position and results of operations.
	Purchase concentration of raw materials and equipment
	The principal raw materials used for the Company's production of modified plastics products are plastic resins, such as polypropylene, ABS and nylon. During the three-month periods ended March 31, 2015 and 2014, the Company purchased its raw materials through six and seven distributors, which individually exceeded 10% of the Company's total raw material purchases, accounted for approximately 73.8% and 79.2%, respectively.  Management believes that other suppliers could provide similar raw materials on comparable terms. A change in suppliers, however, could cause a delay in manufacturing and a possible loss of sales, which would adversely affect the Company's business, financial position and results of operations.
	The Company purchased equipment from two and one major equipment distributor, which accounted for 99.8% and 72.4% of the Company's total equipment purchases for the three-month periods ended March 31, 2015 and 2014, respectively. Management believes that other suppliers could provide similar equipment on comparable terms. A change of the supplier could cause a delay in manufacturing and a possible loss of sales, which could adversely affect the Company's business, financial position and results of operations.  The majority owner of one of the major equipment distributors, that supplied approximately 47.3% and 72.4% of the Company's total equipment purchases, is also the majority owner of sales Distributor D presented above.
	Cash concentration
	Cash and cash equivalents, restricted cash and time deposits maintained at banks consist of the following:
		March 31, 2015		December 31, 2014
		US$		US$
	RMB denominated bank deposits with:
	Financial Institutions in the PRC		362,982,381		311,377,750
	U.S. dollar denominated bank deposits with:
	Financial Institution in the U.S.		297,201		770,704
	Financial Institutions in the PRC		17,139		17,139
	Financial Institution in Hong Kong Special Administrative Region (“Hong Kong SAR”)		135,722		1,366,224
	Financial Institution in Macau Special Administrative Region (“Macau SAR”)		140,179		47,868
	Financial Institution in Dubai, United Arab Emirates (“UAE”)		988,698		481,179
	Euro denominated bank deposits with:
	Financial institution in Hong Kong SAR		-		83,017
	HK dollar denominated bank deposits with:
	Financial institution in Hong Kong SAR		7,855		6,723
	Dirham denominated bank deposits with:
	Financial institution in Dubai, UAE		135,606		112,815
	The bank deposits with financial institutions in the PRC are not insured by any government authority. The bank deposits with financial institutions in the HK SAR are insured by the government authority up to HK$500,000. The bank deposits with financial institutions in the Macau SAR are insured by the government authority up to MOP$500,000.To limit exposure to credit risk, the Company primarily places bank deposits with large financial institutions in the PRC, HK SAR and Macau SAR with acceptable credit rating.
	Cash deposits in bank that are restricted as to withdrawal or usage for up to 12 months are reported as restricted cash in the condensed consolidated balance sheets and excluded from cash in the condensed consolidated statements of cash flows. Cash deposits that are restricted for period beyond 12 months from the balance sheet date are included in other non-current assets in the condensed consolidated balance sheets.
	Short-term bank deposits that are pledged as collateral for bills payable relating to purchases of raw materials are reported as restricted cash and amounted to US$6,383,219 and US$11,868,855 as of March 31, 2015 and December 31, 2014, respectively. Upon maturity and repayment of the bills payable, which is generally within 6 months, the cash becomes available for use by the Company. Short-term bank deposits that are pledged as collateral for letter of credit relating to purchases of raw materials are reported as restricted cash and amounted to nil and US$676,917 as of March 31, 2015 and December 31, 2014, respectively. The cash will be available for use by the Company 90 days from the issuance of the letter of credit. Cash deposits in the amount of US$17,722,212 were restricted relating to the government grant as of March 31, 2015 (note 12), and included in other non-current assets.  The cash flows from the pledged bank deposits, which relate to purchases of raw materials and government grant, are reported within cash flows from operating activities in the condensed consolidated statements of cash flows.
	Short-term bank deposits that are pledged as collateral for short-term bank borrowings are reported as restricted cash and amounted to US$22,445,987 and nil as of March 31, 2015 and December 31, 2014, respectively.  Long-term bank deposits that are pledged as collateral for issuance of letter of guarantee are reported as other non-current assets and amounted to US$17,722,212 and US$17,728,782 as of March 31, 2015 and December 31, 2014, respectively. The cash flows from such bank deposits are reported within cash flows from financing activities in the condensed consolidated statements of cash flows.

Accounts_receivable

Accounts receivable	3 Months Ended
	Mar. 31, 2015
Accounts receivable [Abstract]
Accounts receivable	Note 2 - Accounts receivable
	Accounts receivable consists of the following:
		March 31, 2015			December 31, 2014
		US$			US$
	Accounts receivable		199,269,901			204,108,050
	Allowance for doubtful accounts		(109,871	)		(109,912	)
	Accounts receivable, net		199,160,030			203,998,138
	As of March 31, 2015 and December 31, 2014, the accounts receivable balances also include notes receivable in the amount of US$539,810 and US$921,907, respectively. As of March 31, 2015 and December 31, 2014, US$32,916,916 and US$50,473,063 of accounts receivable are pledged for the short-term bank loans, respectively.
	There was no accrual of additional provision or write-off of accounts receivable for the three-month periods ended March 31, 2015 and 2014.

Inventories

Inventories	3 Months Ended
	Mar. 31, 2015
Inventories [Abstract]
Inventories	Note 3 - Inventories
	Inventories consist of the following:
		March 31, 2015		December 31, 2014
		US$		US$
	Raw materials		275,543,080		241,853,814
	Work in progress		248,592		207,181
	Finished goods		23,126,112		7,736,249
	Total inventories		298,917,784		249,797,244
	There were no write down of inventories for the three-month periods ended March 31, 2015 and 2014.

Prepaid_expenses_and_other_cur

Prepaid expenses and other current assets	3 Months Ended
	Mar. 31, 2015
Prepaid expenses and other current assets [Abstract]
Prepaid expenses and other current assets	Note 4 – Prepaid expenses and other current assets
	Prepaid expenses and other current assets consist of the following:
		March 31, 2015		December 31, 2014
		US$		US$
	Advances to suppliers		2,005,842		168,614
	Value added taxes receivables		5,248,906		6,407,547
	Interest receivable		3,524,314		3,351,672
	Others		4,883,208		1,325,995
	Total prepaid expenses and other current assets		15,662,270		11,253,828
	Others mainly include prepaid interest expenses and staff advances.

Property_plant_and_equipment_n

Property, plant and equipment, net	3 Months Ended
	Mar. 31, 2015
Property, plant and equipment, net [Abstract]
Property, plant and equipment, net	Note 5 – Property, plant and equipment, net
	Property, plant and equipment consist of the following:
		March 31, 2015			December 31, 2014
		US$			US$
	Machinery, equipment and furniture		214,584,089			209,509,700
	Motor vehicles		1,854,364			1,854,985
	Workshops and buildings		79,275,270			79,009,346
	Construction in progress		92,311,716			93,970,716
	Total property, plant and equipment		388,025,439			384,344,747
	Less accumulated depreciation		(71,985,554	)		(66,020,147	)
	Property, plant and equipment, net		316,039,885			318,324,600
	For the three-month periods ended March 31, 2015 and 2014, the Company capitalized US$168,306, and nil of interest costs as a component of the cost of construction in progress. Depreciation expense on property, plant and equipment was allocated to the following expense items:
		Three-Month Period Ended March 31,
		2015			2014
		US$			US$
	Cost of revenues		4,779,588			4,870,655
	General and administrative expenses		375,128			302,281
	Research and development expenses		795,719			432,009
	Total depreciation expense		5,950,435			5,604,945

Prepayments_to_equipment_suppl

Prepayments to equipment suppliers	3 Months Ended
	Mar. 31, 2015
Prepayments to equipment suppliers [Abstract]
Prepayments to equipment suppliers	Note 6 - Prepayments to equipment suppliers
	On March 8, 2013, Xinda Holding (HK) entered into an investment agreement with Nanchong Government, pursuant to which Xinda Holding (HK) will invest RMB1.8 billion (equivalent to US$290.1 million) in property, plant and equipment and approximately RMB0.6 billion (equivalent to US$96.7 million) in working capital, for the construction of the Sichuan plant.  In December 2013, the Company entered into an equipment purchase contract with Harbin Jiamu Import & Export Trading Co., Ltd ("Jiamu") for a total consideration of RMB1,629.3 million (equivalent to US$262.6 million) to purchase 70 production lines. As of March 31, 2015 and December 31, 2014, the Company paid RMB1,375.2 million (equivalent to US$221.6 million) and RMB1,130.9 million (equivalent to US$182.3 million) , respectively.
	On January 5, 2015, AL Composites Materials FZE ("AL Composites") entered into an equipment purchase contract with Peaceful Treasure Limited ("Peaceful") for a total consideration of US$271.2 million to purchase certain production and testing equipment. Pursuant to the contract with Peaceful, the Company has paid US$43.4 million as prepayments as of March 31, 2015.

Fair_value_measurement

Fair value measurement	3 Months Ended
	Mar. 31, 2015
Fair value measurement [Abstract]
Fair value measurement	Note 7 – Fair value measurement
	Short-term financial instruments, including cash and cash equivalents, restricted cash, time deposits, accounts receivable, amounts due from a related party, short-term bank loans, bills payable, accounts payable and accrued expenses and other current liabilities- carrying amounts approximate fair values because of the short maturity of these instruments.
	Long-term bank loans-fair value is based on the amount of future cash flows associated with each loan discounted at the Company's current borrowing rate for similar debt instruments of comparable terms. The carrying value of the long-term bank loans approximate their fair values as the long-term bank loans carry interest rates which approximate rates currently offered by the Company's banks for similar debt instruments of comparable maturities.
	Notes payable - fair values of the Company's notes payable are estimated based on quoted market prices which are categorized as Level 1 measurement in the fair value hierarchy. As of March 31, 2015, the carrying amount and estimated fair value of the notes payable were US$ 148,682,290 and US$ 142,782,000, respectively.
	Derivative assets on foreign currency forward contract- fair value is determined using a discount cash flow model, which discounts the difference between the forward contract exchange rate from the quoted curve and the contract rate multiplied by the notional amounts. It considers the following significant inputs: risk-free rate and foreign exchange rate.

Borrowings

Borrowings	3 Months Ended
	Mar. 31, 2015
Borrowings [Abstract]
Borrowings	Note 8 – Borrowings
	(a)	Current
			31-Mar-14		31-Dec-14
			US$		US$
	Unsecured loans			63,316,631		47,223,028
	Secured loans by accounts receivable			26,261,097		40,292,686
	Guaranteed loans by a third-party (ii)			38,666,645		-
	Secured loans by restricted cash (iii)			28,600,000		-
	Current portion of long-term bank loans (note b)			4,161,111		12,219,708
	Total short-term loans, including current portion of long-term bank loans			161,005,484		99,735,422
		(i)	As of March 31, 2015 and December 31, 2014, the Company's short-term bank loans bear a weighted average interest rate of 5.0% and 5.7% per annum, respectively. All short-term bank loans mature at various times within one year and contain no renewal terms.
		(ii)	On February 11, 2015, the Company obtained RMB140 million (US$22.6 million) bank loan at an annual interest rate of 5.32%, from Bank of Communications, and RMB100 million (US$16.1 million) bank loan at an annual interest rate of 5.32%, from Bank of Construction banks in Nanchong City, Sichuan. These two loans were guaranteed by an investment company affiliated with the People's Government of Shunqing District, Nanchong City, Sichuan Province (“Shunqing Government”) and were issued to support the Company's construction of a production plant in Nanchong City. Sichuan and will be paid off in five installments. The last installment will become due and payable on November 30, 2015.
		(iii)	On January 15, 2015, the Company obtained a 350-day secured loan of US$12.0 million from HSBC Bank Middle East Limited in Dubai, UAE at an annual interest rate of London Inter-Bank Offered Rate (“LIBOR”) (0.2708% as of March 31, 2015) plus 1.8%. On February 2, 2015, the Company obtained another 351-day secured loan of US$16.6 million from HSBC Bank Middle East Limited in Dubai, UAE at an interest rate of LIBOR (0.2708% as of March 31, 2015) plus 1.8%. These loans were secured by restricted cash of RMB39.3 million (equivalent to US$6.3 million) by the HSBC bank in Harbin, China.
	(b)	Non-current
			31-Mar-15		31-Dec-14
			US$		US$
	Secured loans			70,000,000		70,000,000
	Unsecured loans			139,699,634		116,494,154
	Less:current portion			4,161,111		12,219,708
	Total long-term bank loans, excluding current portion			205,538,523		174,274,446
	During March and April 2014, the Company obtained two 15-month unsecured loans of RMB50 million (equivalent to US$8.1 million) at an interest rate of 6.15% per annum from the Bank of Heilongjiang. The company paid off these loans in advance by the end of March 2015.
	On January 23, 2015, the Company obtained a two-year unsecured loan of RMB100 million (equivalent to US$16.1 million) at an annual interest rate of 6.0% from Agriculture Bank of China.
	On January 27, 2015, the Company obtained a one and half year unsecured loan of US$15.2 million from Bank of China, at an interest rate of LIBOR (0.2708% as of March 31, 2015) plus 1.5%. The interest rate is reset every three months.
	As of March 31, 2015, the Company had total lines of credit of RMB2,739.3 million (US$441.3 million). As of March 31, 2015, the Company has unused lines of credit of RMB446.8 million (US$72.0 million) with remaining terms less than 12 months and RMB257.4 million (US$41.5 million) with remaining terms beyond 12 months.
	Certain lines of credit contain financial covenants such as total stockholders' equity, debt asset ratio, current ratio, contingent liability ratio and net profit. As of March 31, 2015, the Company has met these financial covenants.

Accrued_expenses_and_other_cur

Accrued expenses and other current liabilities	3 Months Ended
	Mar. 31, 2015
Accrued expenses and other current liabilities [Abstract]
Accrued expenses and other current liabilities	Note 9 - Accrued expenses and other current liabilities
	Accrued expenses and other current liabilities consist of the following:
		March 31, 2015		December 31, 2014
		US$		US$
	Payables for purchase of property, plant and equipment		7,131,095		7,234,607
	Accrued freight expenses		2,589,545		1,688,431
	Accrued interest expenses		5,154,385		9,031,741
	Others		7,406,174		6,529,804
	Total accrued expenses and other current liabilities		22,281,199		24,484,583
	Others mainly represent accrued payroll and employee benefits, non income tax payables and other accrued miscellaneous operating expenses.

Related_party_transactions

Related party transactions	3 Months Ended
	Mar. 31, 2015
Related party transactions [Abstract]
Related party transactions	Note 10 – Related party transactions
	The Company entered into related party transactions with Harbin Xinda High-Tech Co., Ltd. (“Xinda High-Tech”), an entity controlled by the wife of Mr. Han, the chief executive officer and controlling stockholder of the Company, and Mr. Han's son.  The significant related party transactions are summarized as follows:
		Three-Month Period Ended March 31,
		2015			2014
		US$			US$
	Costs and expenses resulting from transactions with related parties:
	Rental expenses for plant and office spaces			195,213			199,911
	The balance due from a related party is summarized as follows:
		March 31, 2015			December 31, 2014
		US$			US$
	Amounts due from a related party:
	Prepaid rent expenses to Xinda High-Tech			27,705			220,262
	Total			27,705			220,262
	The Company rents the following plant and office buildings in Harbin, Heilongjiang province from Xinda High-Tech:
	Premise Leased	Area (M2)			Annual Rental Fee (US$)			Period of Lease
	Office building			23,894			764,850	Between January 1, 2014 and December 31, 2018
	The Company rents the following facilities in Harbin, Heilongjiang province from Mr. Han's son:
	Premise Leased		Area (M2)			Annual Rental Fee (US$)		Period of Lease
	Facility			3,134			16,005	Between January 1, 2014 and December 31, 2014
	Facility			200			6,402	Between August 17, 2014 and August 16, 2015

Income_tax

Income tax	3 Months Ended
	Mar. 31, 2015
Income tax [Abstract]
Income tax	Note 11– Income tax
	Pursuant to an approval from the local tax authority in July 2013, Sichuan Xinda Enterprise Group Co., Ltd. ("Sichuan Xinda Group"), a subsidiary of China XD, became a qualified enterprise located in the western region of the PRC, which entitled it to a preferential income tax rate of 15% from January 1, 2013 to December 31, 2020. Under the current laws of Dubai, Al Composites Materials FZE ("Al Composites"), a subsidiary of China XD, is exempted from income taxes.
	The effective income tax rates for the three-month periods ended March 31, 2015 and 2014 were 14.3% and 24.7%, respectively. The effective income tax rate for the three-month period ended March 31, 2015 differs from the PRC statutory income tax rate of 25% primarily due to the above mentioned Dubai exempt from income taxes, Sichuan Xinda Group's preferential income tax rate, partially offsetting by effect of tax rate differential on entities not subject to PRC income tax, effect of non-deductible expenses and increase of valuation allowances against deferred income tax assets of certain subsidiaries, which were at cumulative loss position.
	As of March 31, 2015, the unrecognized tax benefits were US$15,251,469 and the interest relating to unrecognized tax benefits was US$1,628,687.  No penalties expense related to unrecognized tax benefits were recorded. The Company is currently unable to provide an estimate of a range of the total amount of unrecognized tax benefits that is reasonably possible to change significantly within the next twelve months.

Deferred_Income

Deferred Income	3 Months Ended
	Mar. 31, 2015
Deferred Income [Abstract]
Deferred Income	Note 12 – Deferred Income
	Following the investment agreement on the Company's Sichuan plant (Note 6), on January 26, 2015, the Company entered into a memorandum agreement and a fund support agreement with the People's Government of Shunqing District, Nanchong City, Sichuan Province (“Shunqing Government”) on facilitating the Company's production base in Sichuan.  Pursuant to above two agreements, Shunqing Government, through its investment vehicle,  extended to the Company a RMB110 million (equivalent to US$17.7 million) interest free fund support on the construction of the Sichuan plant.  As the fund support is deemed specifically for the plant construction and payable if any failure by the Company to follow the construction schedule, it is recognized as deferred income of government grant.

Stockholders_equity

Stockholders' equity	3 Months Ended
	Mar. 31, 2015
Stockholders' equity [Abstract]
Stockholders' equity	Note 13 – Stockholders' equity
	The changes of each caption of stockholders' equity for the three-month period ended March 31, 2015 are as follows:
		Series B Preferred Stock				Common Stock							Additional					Accumulated			Total
																		Other
		Number		Amount		Number		Amount		Treasury Stock			Paid-in			Retained		Comprehensive			Stockholders'
		of Shares				of Shares							Capital			Earnings		Income			Equity
				US$				US$
	Balance as of January 1, 2015		1,000,000		100		49,151,796		4,916		(92,694	)		80,875,787			431,823,706		12,775,801			525,387,616
	Net income		-		-		-		-		-			-			25,404,026		-			25,404,026
	Other comprehensive loss		-		-		-		-		-			-			-		(164,760	)		(164,760	)
	Stock based compensation		-		-		-		-		-			255,726			-		-			255,726
	Vesting of nonvested shares		-		-		9,488		1		-			(1	)		-		-			-
	Balance as of March 31, 2015		1,000,000		100		49,161,284		4,917		(92,694	)		81,131,512			457,227,732		12,611,041			550,882,608

Stock_based_compensation

Stock based compensation	3 Months Ended
	Mar. 31, 2015
Stock based compensation [Abstract]
Stock based compensation	Note 14 – Stock based compensation
	A summary of the nonvested shares activity for the three-month ended March 31, 2015 is as follows:
		Number of Nonvested			Weighted Average
		Shares			Grant date Fair Value
					US$
	Outstanding as of December 31, 2014		647,288			5
	Vested		(9,488	)		4.15
	Forfeited		(2,000	)		4.77
	Outstanding as of March 31, 2015		635,800			5.01
	The Company recognized US$255,726 and US$410,848 of compensation expense in general and administrative expenses relating to nonvested shares for the three-month periods ended March 31, 2015 and 2014, respectively. As of March 31, 2015, there was US$1,545,184 of total unrecognized compensation cost relating to nonvested shares, which is to be recognized over a weighted average period of 1.42 years.

Earnings_per_share

Earnings per share	3 Months Ended
	Mar. 31, 2015
Earnings per share [Abstract]
Earnings per share	Note 15 - Earnings per share
	Basic and diluted earnings per share are calculated as follows:
			Three-Month Period Ended March 31,
			2015				2014
			US$				US$
	Numerator:
	Net income			25,404,026				21,996,051
	Less:
	Earnings allocated to participating Series D convertible preferred stock			(6,177,505	)			(5,418,875	)
	Earnings allocated to participating nonvested shares			(247,148	)			(228,376	)
	Net income for basic and dilutive earnings per share			18,979,373				16,348,800
	Denominator:
	Denominator for basic and diluted earnings per share			49,157,383				48,272,165
	Earnings per share:
	Basic and diluted			0.39				0.34
	The following table summarizes potentially dilutive securities excluded from the calculation of diluted earnings per share for the three-month periods ended March 31, 2015 and 2014 because their effects are anti-dilutive:
		Three-Month Period Ended March 31,
		2015				2014
	Shares issuable upon conversion of Series D convertible preferred stock			16,000,000				16,000,000
	Shares issuable upon exercise of Series A investor warrant			-				1,320,696
	Shares issuable upon exercise of Series A placement agent warrant			-				117,261

Commitments_and_contingencies

Commitments and contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and contingencies [Abstract]
Commitments and contingencies	Note 16 - Commitments and contingencies
	(1)    Lease commitments
	Future minimum lease payments under non-cancellable operating leases agreements as of March 31, 2015 were as follows.
		US$
	Period from April 1, 2015 to December 31, 2015		970,649
	Years ending December 31,
	2016		1,084,140
	2017		944,076
	2018		875,410
	2019		112,896
	2020 and thereafter		1,147,776
	Rental expenses incurred for operating leases of plant and equipment and office spaces were US$229,149 and US$318,228 for the three-month periods ended March 31, 2015 and 2014, respectively. There are no step rent provisions, escalation clauses, capital improvement funding requirements, other lease concessions or contingent rent in the lease agreements. The Company has no legal or contractual asset retirement obligations at the end of leases. The company's leases do not contain any contingent rent payments terms.
	(2)   Sichuan plant construction and equipment
	On March 8, 2013, Xinda Holding (HK) entered into an investment agreement with Shunqing Government, pursuant to which Xinda Holding (HK) will invest RMB1.8 billion (equivalent to US$290 million) in property, plant and equipment and approximately RMB0.6 billion (equivalent to US$97 million) in working capital, for the construction of Sichuan plant.  As of March 31, 2015, the Company has a commitment of RMB225.5 million (equivalent to US$36.3 million) mainly for facility construction, and RMB343.8 million (equivalent to US$55.4 million) for the acquisition of equipments.
	(3)    Dubai plant construction and equipment
	On January 5, 2015, AL Composites entered into an equipment purchase contract with Peaceful for a total consideration of US$271.2 million to purchase certain production and testing equipment.  As of March 31, 2015, the Company has a commitment of US$227.8 million for the remaining equipment acquisition. On January 25, 2015, AL Composites entered into a facility purchase contract with Zettachem International Limited for a total consideration of AED 12,500,000 (equivalent to US$3.4 million). As of March 31, 2015, the Company has a commitment of US$0.7 million.
	(4)    Contingencies
	The Company and certain of its officers were named as defendants in two putative securities class action lawsuits filed on July 15, 2014 and July 16, 2014 in the United States District Court for the Southern District of New York. The Company, after consultation with its legal counsel, believes that the lawsuits are without merit and intends to vigorously defend against them.  Nevertheless, there is a possibility that a loss may have been incurred. In accordance with ASC Topic 450, no loss contingency was accrued as of March 31, 2015 since the possible loss or range of loss cannot be reasonably estimated.

Basis_of_presentation_signific1

Basis of presentation, significant concentrations and risks (Policy)	3 Months Ended
	Mar. 31, 2015
Basis Of Presentation Significant Concentrations And Risks [Abstract]
Basis of presentation	(a) Basis of presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted as permitted by rules and regulations of the United States Securities and Exchange Commission (“SEC”). The condensed consolidated balance sheet as of December 31, 2014 was derived from the audited consolidated financial statements of China XD Plastics Company Limited (“China XD”) and subsidiaries (collectively, the “Company”). The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated balance sheet of the Company as of December 31, 2014, and the related consolidated statements of comprehensive income, changes in equity and cash flows for the year then ended, included in the Company's Annual Report on Form 10-K filed with the SEC on March 16, 2015.
	In the opinion of the management, all adjustments (which include normal recurring adjustments) necessary to present a fair statement of the financial position as of March 31, 2015, the results of operations and cash flows for the three-month periods ended March 31, 2015 and 2014, have been made.
	The preparation of consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include the recoverability of the carrying amounts of property, plant and equipment, the realizability of inventories, the useful lives of property, plant and equipment, the collectibility of accounts receivable, the fair values of stock-based compensation awards, and the accruals for tax uncertainties and other contingencies. The current economic environment has increased the degree of uncertainty inherent in those estimates and assumptions.
Significant concentrations and risks	(b) Significant concentrations and risks
	Sales concentration
	The Company sells its products primarily through approved distributors in the People's Republic of China (the “PRC”). To a lesser extent, the Company also sells its products to an overseas customer in the Republic of Korea (the “ROK”). The Company's sales are highly concentrated.  Sales to distributors and end customer, which individually exceeded 10% of the Company's revenues for the three month periods ended March 31, 2015 and 2014, are as follows:
		For the Three-Month Period Ended March 31,
		2015					2014
		US$		%			US$		%
	Distributor A, located in PRC		35,012,896		15.8	%		36,355,612		16.3	%
	Distributor B, located in PRC		32,811,834		14.8	%		32,580,215		14.6	%
	Distributor C, located in PRC		26,205,294		11.8	%		32,533,393		14.6	%
	Distributor D, located in PRC		22,658,046		10.2	%		33,197,485		14.8	%
	Distributor E, located in PRC		22,287,867		10	%		19,330,849		8.6	%
	Direct Customer F, located in ROK		34,946,900		15.7	%		-		-
	Total		173,922,837		78.3	%		153,997,554		68.9	%
	The Company expects revenues from these distributors and the customer to continue to represent a substantial portion of its revenue in the future. Any factor adversely affecting the automobile industry in the PRC and the Republic of Korea (the "ROK") or the business operations of these customers will have a material effect on the Company's business, financial position and results of operations.
	Purchase concentration of raw materials and equipment
	The principal raw materials used for the Company's production of modified plastics products are plastic resins, such as polypropylene, ABS and nylon. During the three-month periods ended March 31, 2015 and 2014, the Company purchased its raw materials through six and seven distributors, which individually exceeded 10% of the Company's total raw material purchases, accounted for approximately 73.8% and 79.2%, respectively.  Management believes that other suppliers could provide similar raw materials on comparable terms. A change in suppliers, however, could cause a delay in manufacturing and a possible loss of sales, which would adversely affect the Company's business, financial position and results of operations.
	The Company purchased equipment from two and one major equipment distributor, which accounted for 99.8% and 72.4% of the Company's total equipment purchases for the three-month periods ended March 31, 2015 and 2014, respectively. Management believes that other suppliers could provide similar equipment on comparable terms. A change of the supplier could cause a delay in manufacturing and a possible loss of sales, which could adversely affect the Company's business, financial position and results of operations.  The majority owner of one of the major equipment distributors, that supplied approximately 47.3% and 72.4% of the Company's total equipment purchases, is also the majority owner of sales Distributor D presented above.
	Cash concentration
	Cash and cash equivalents, restricted cash and time deposits maintained at banks consist of the following:
		March 31, 2015		December 31, 2014
		US$		US$
	RMB denominated bank deposits with:
	Financial Institutions in the PRC		362,982,381		311,377,750
	U.S. dollar denominated bank deposits with:
	Financial Institution in the U.S.		297,201		770,704
	Financial Institutions in the PRC		17,139		17,139
	Financial Institution in Hong Kong Special Administrative Region (“Hong Kong SAR”)		135,722		1,366,224
	Financial Institution in Macau Special Administrative Region (“Macau SAR”)		140,179		47,868
	Financial Institution in Dubai, United Arab Emirates (“UAE”)		988,698		481,179
	Euro denominated bank deposits with:
	Financial institution in Hong Kong SAR		-		83,017
	HK dollar denominated bank deposits with:
	Financial institution in Hong Kong SAR		7,855		6,723
	Dirham denominated bank deposits with:
	Financial institution in Dubai, UAE		135,606		112,815
	The bank deposits with financial institutions in the PRC are not insured by any government authority. The bank deposits with financial institutions in the HK SAR are insured by the government authority up to HK$500,000. The bank deposits with financial institutions in the Macau SAR are insured by the government authority up to MOP$500,000.To limit exposure to credit risk, the Company primarily places bank deposits with large financial institutions in the PRC, HK SAR and Macau SAR with acceptable credit rating.
	Cash deposits in bank that are restricted as to withdrawal or usage for up to 12 months are reported as restricted cash in the condensed consolidated balance sheets and excluded from cash in the condensed consolidated statements of cash flows. Cash deposits that are restricted for period beyond 12 months from the balance sheet date are included in other non-current assets in the condensed consolidated balance sheets.
	Short-term bank deposits that are pledged as collateral for bills payable relating to purchases of raw materials are reported as restricted cash and amounted to US$6,383,219 and US$11,868,855 as of March 31, 2015 and December 31, 2014, respectively. Upon maturity and repayment of the bills payable, which is generally within 6 months, the cash becomes available for use by the Company. Short-term bank deposits that are pledged as collateral for letter of credit relating to purchases of raw materials are reported as restricted cash and amounted to nil and US$676,917 as of March 31, 2015 and December 31, 2014, respectively. The cash will be available for use by the Company 90 days from the issuance of the letter of credit. Cash deposits in the amount of US$17,722,212 were restricted relating to the government grant as of March 31, 2015 (note 12), and included in other non-current assets.  The cash flows from the pledged bank deposits, which relate to purchases of raw materials and government grant, are reported within cash flows from operating activities in the condensed consolidated statements of cash flows.
	Short-term bank deposits that are pledged as collateral for short-term bank borrowings are reported as restricted cash and amounted to US$22,445,987 and nil as of March 31, 2015 and December 31, 2014, respectively.  Long-term bank deposits that are pledged as collateral for issuance of letter of guarantee are reported as other non-current assets and amounted to US$17,722,212 and US$17,728,782 as of March 31, 2015 and December 31, 2014, respectively. The cash flows from such bank deposits are reported within cash flows from financing activities in the condensed consolidated statements of cash flows.

Basis_of_presentation_signific2

Basis of presentation, significant concentrations and risks (Tables)	3 Months Ended
	Mar. 31, 2015
Basis Of Presentation Significant Concentrations And Risks [Abstract]
Schedule of Sales Concentrations by Major Distributors		For the Three-Month Period Ended March 31,
		2015					2014
		US$		%			US$		%
	Distributor A, located in PRC		35,012,896		15.8	%		36,355,612		16.3	%
	Distributor B, located in PRC		32,811,834		14.8	%		32,580,215		14.6	%
	Distributor C, located in PRC		26,205,294		11.8	%		32,533,393		14.6	%
	Distributor D, located in PRC		22,658,046		10.2	%		33,197,485		14.8	%
	Distributor E, located in PRC		22,287,867		10	%		19,330,849		8.6	%
	Direct Customer F, located in ROK		34,946,900		15.7	%		-		-
	Total		173,922,837		78.3	%		153,997,554		68.9	%
Schedule of Cash and Cash Equivalents		March 31, 2015		December 31, 2014
		US$		US$
	RMB denominated bank deposits with:
	Financial Institutions in the PRC		362,982,381		311,377,750
	U.S. dollar denominated bank deposits with:
	Financial Institution in the U.S.		297,201		770,704
	Financial Institutions in the PRC		17,139		17,139
	Financial Institution in Hong Kong Special Administrative Region (“Hong Kong SAR”)		135,722		1,366,224
	Financial Institution in Macau Special Administrative Region (“Macau SAR”)		140,179		47,868
	Financial Institution in Dubai, United Arab Emirates (“UAE”)		988,698		481,179
	Euro denominated bank deposits with:
	Financial institution in Hong Kong SAR		-		83,017
	HK dollar denominated bank deposits with:
	Financial institution in Hong Kong SAR		7,855		6,723
	Dirham denominated bank deposits with:
	Financial institution in Dubai, UAE		135,606		112,815

Accounts_receivable_Tables

Accounts receivable (Tables)	3 Months Ended
	Mar. 31, 2015
Accounts receivable [Abstract]
Schedule of Accounts Receivable		March 31, 2015			December 31, 2014
		US$			US$
	Accounts receivable		199,269,901			204,108,050
	Allowance for doubtful accounts		(109,871	)		(109,912	)
	Accounts receivable, net		199,160,030			203,998,138

Inventories_Tables

Inventories (Tables)	3 Months Ended
	Mar. 31, 2015
Inventories [Abstract]
Schedule of Inventories		March 31, 2015		December 31, 2014
		US$		US$
	Raw materials		275,543,080		241,853,814
	Work in progress		248,592		207,181
	Finished goods		23,126,112		7,736,249
	Total inventories		298,917,784		249,797,244

Prepaid_expenses_and_other_cur1

Prepaid expenses and other current assets (Tables)	3 Months Ended
	Mar. 31, 2015
Prepaid expenses and other current assets [Abstract]
Schedule of Prepaid Expense and Other Assets Current		March 31, 2015		December 31, 2014
		US$		US$
	Advances to suppliers		2,005,842		168,614
	Value added taxes receivables		5,248,906		6,407,547
	Interest receivable		3,524,314		3,351,672
	Others		4,883,208		1,325,995
	Total prepaid expenses and other current assets		15,662,270		11,253,828

Property_plant_and_equipment_n1

Property, plant and equipment, net (Tables)	3 Months Ended
	Mar. 31, 2015
Property, plant and equipment, net [Abstract]
Schedule of Property, Plant and Equipment		March 31, 2015			December 31, 2014
		US$			US$
	Machinery, equipment and furniture		214,584,089			209,509,700
	Motor vehicles		1,854,364			1,854,985
	Workshops and buildings		79,275,270			79,009,346
	Construction in progress		92,311,716			93,970,716
	Total property, plant and equipment		388,025,439			384,344,747
	Less accumulated depreciation		(71,985,554	)		(66,020,147	)
	Property, plant and equipment, net		316,039,885			318,324,600
Schedule of the Allocation of Depreciation Expense on Property, Plant and Equipment		Three-Month Period Ended March 31,
		2015			2014
		US$			US$
	Cost of revenues		4,779,588			4,870,655
	General and administrative expenses		375,128			302,281
	Research and development expenses		795,719			432,009
	Total depreciation expense		5,950,435			5,604,945

Borrowings_Tables

Borrowings (Tables)	3 Months Ended
	Mar. 31, 2015
Borrowings [Abstract]
Schedule of Short-term Loans			31-Mar-14		31-Dec-14
			US$		US$
	Unsecured loans			63,316,631		47,223,028
	Secured loans by accounts receivable			26,261,097		40,292,686
	Guaranteed loans by a third-party (ii)			38,666,645		-
	Secured loans by restricted cash (iii)			28,600,000		-
	Current portion of long-term bank loans (note b)			4,161,111		12,219,708
	Total short-term loans, including current portion of long-term bank loans			161,005,484		99,735,422
		(i)	As of March 31, 2015 and December 31, 2014, the Company's short-term bank loans bear a weighted average interest rate of 5.0% and 5.7% per annum, respectively. All short-term bank loans mature at various times within one year and contain no renewal terms.
		(ii)	On February 11, 2015, the Company obtained RMB140 million (US$22.6 million) bank loan at an annual interest rate of 5.32%, from Bank of Communications, and RMB100 million (US$16.1 million) bank loan at an annual interest rate of 5.32%, from Bank of Construction banks in Nanchong City, Sichuan. These two loans were guaranteed by an investment company affiliated with the People's Government of Shunqing District, Nanchong City, Sichuan Province (“Shunqing Government”) and were issued to support the Company's construction of a production plant in Nanchong City. Sichuan and will be paid off in five installments. The last installment will become due and payable on November 30, 2015.
		(iii)	On January 15, 2015, the Company obtained a 350-day secured loan of US$12.0 million from HSBC Bank Middle East Limited in Dubai, UAE at an annual interest rate of London Inter-Bank Offered Rate (“LIBOR”) (0.2708% as of March 31, 2015) plus 1.8%. On February 2, 2015, the Company obtained another 351-day secured loan of US$16.6 million from HSBC Bank Middle East Limited in Dubai, UAE at an interest rate of LIBOR (0.2708% as of March 31, 2015) plus 1.8%. These loans were secured by restricted cash of RMB39.3 million (equivalent to US$6.3 million) by the HSBC bank in Harbin, China.
Schedule of Long-Term Debt			31-Mar-15		31-Dec-14
			US$		US$
	Secured loans			70,000,000		70,000,000
	Unsecured loans			139,699,634		116,494,154
	Less:current portion			4,161,111		12,219,708
	Total long-term bank loans, excluding current portion			205,538,523		174,274,446

Accrued_expenses_and_other_cur1

Accrued expenses and other current liabilities (Tables)	3 Months Ended
	Mar. 31, 2015
Accrued expenses and other current liabilities [Abstract]
Schedule of Accrued Expenses and Other Current Liabilities		March 31, 2015		December 31, 2014
		US$		US$
	Payables for purchase of property, plant and equipment		7,131,095		7,234,607
	Accrued freight expenses		2,589,545		1,688,431
	Accrued interest expenses		5,154,385		9,031,741
	Others		7,406,174		6,529,804
	Total accrued expenses and other current liabilities		22,281,199		24,484,583

Related_party_transactions_Tab

Related party transactions (Tables)	3 Months Ended
	Mar. 31, 2015
Related party transactions [Abstract]
Schedule of Significant Related Party Transactions		Three-Month Period Ended March 31,
		2015			2014
		US$			US$
	Costs and expenses resulting from transactions with related parties:
	Rental expenses for plant and office spaces			195,213			199,911
Schedule of Amounts Due From To Related Parties		March 31, 2015			December 31, 2014
		US$			US$
	Amounts due from a related party:
	Prepaid rent expenses to Xinda High-Tech			27,705			220,262
	Total			27,705			220,262
Schedule of Plant and Office Buildings in Harbin	Premise Leased	Area (M2)			Annual Rental Fee (US$)			Period of Lease
	Office building			23,894			764,850	Between January 1, 2014 and December 31, 2018
	The Company rents the following facilities in Harbin, Heilongjiang province from Mr. Han's son:
	Premise Leased		Area (M2)			Annual Rental Fee (US$)		Period of Lease
	Facility			3,134			16,005	Between January 1, 2014 and December 31, 2014
	Facility			200			6,402	Between August 17, 2014 and August 16, 2015

Stockholders_equity_Tables

Stockholders' equity (Tables)	3 Months Ended
	Mar. 31, 2015
Stockholders' equity [Abstract]
Schedule of Changes in Stockholders' Equity		Series B Preferred Stock				Common Stock							Additional					Accumulated			Total
																		Other
		Number		Amount		Number		Amount		Treasury Stock			Paid-in			Retained		Comprehensive			Stockholders'
		of Shares				of Shares							Capital			Earnings		Income			Equity
				US$				US$
	Balance as of January 1, 2015		1,000,000		100		49,151,796		4,916		(92,694	)		80,875,787			431,823,706		12,775,801			525,387,616
	Net income		-		-		-		-		-			-			25,404,026		-			25,404,026
	Other comprehensive loss		-		-		-		-		-			-			-		(164,760	)		(164,760	)
	Stock based compensation		-		-		-		-		-			255,726			-		-			255,726
	Vesting of nonvested shares		-		-		9,488		1		-			(1	)		-		-			-
	Balance as of March 31, 2015		1,000,000		100		49,161,284		4,917		(92,694	)		81,131,512			457,227,732		12,611,041			550,882,608

Stock_based_compensation_Table

Stock based compensation (Tables)	3 Months Ended
	Mar. 31, 2015
Stock based compensation [Abstract]
Schedule of Nonvested Share Activity		Number of Nonvested			Weighted Average
		Shares			Grant date Fair Value
					US$
	Outstanding as of December 31, 2014		647,288			5
	Vested		(9,488	)		4.15
	Forfeited		(2,000	)		4.77
	Outstanding as of March 31, 2015		635,800			5.01

Earnings_per_share_Tables

Earnings per share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings per share [Abstract]
Calculation of Basic and Diluted Earnings Per Share			Three-Month Period Ended March 31,
			2015				2014
			US$				US$
	Numerator:
	Net income			25,404,026				21,996,051
	Less:
	Earnings allocated to participating Series D convertible preferred stock			(6,177,505	)			(5,418,875	)
	Earnings allocated to participating nonvested shares			(247,148	)			(228,376	)
	Net income for basic and dilutive earnings per share			18,979,373				16,348,800
	Denominator:
	Denominator for basic and diluted earnings per share			49,157,383				48,272,165
	Earnings per share:
	Basic and diluted			0.39				0.34
Summary of Potentially Dilutive Securities		Three-Month Period Ended March 31,
		2015				2014
	Shares issuable upon conversion of Series D convertible preferred stock			16,000,000				16,000,000
	Shares issuable upon exercise of Series A investor warrant			-				1,320,696
	Shares issuable upon exercise of Series A placement agent warrant			-				117,261

Commitments_and_contingencies_

Commitments and contingencies (Tables)	3 Months Ended
	Mar. 31, 2015
Commitments and contingencies [Abstract]
Schedule of Future Minimum Rental Payments		US$
	Period from April 1, 2015 to December 31, 2015		970,649
	Years ending December 31,
	2016		1,084,140
	2017		944,076
	2018		875,410
	2019		112,896
	2020 and thereafter		1,147,776

Basis_of_presentation_signific3

Basis of presentation, significant concentrations and risks (Sales and Purchase Concentration) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Concentration Risk [Line Items]
Revenues	$221,926,395	$223,580,675
Customer Concentration Risk [Member] | Revenues [Member] | Distributor A [Member]
Concentration Risk [Line Items]
Revenues	35,012,896	36,355,612
Concentration risk, percentage	15.80%	16.30%
Customer Concentration Risk [Member] | Revenues [Member] | Distributor B [Member]
Concentration Risk [Line Items]
Revenues	32,811,834	32,580,215
Concentration risk, percentage	14.80%	14.60%
Customer Concentration Risk [Member] | Revenues [Member] | Distributor C [Member]
Concentration Risk [Line Items]
Revenues	26,205,294	32,533,393
Concentration risk, percentage	11.80%	14.60%
Customer Concentration Risk [Member] | Revenues [Member] | Distributor D [Member]
Concentration Risk [Line Items]
Revenues	22,658,046	33,197,485
Concentration risk, percentage	10.20%	14.80%
Customer Concentration Risk [Member] | Revenues [Member] | Distributor E [Member]
Concentration Risk [Line Items]
Revenues	22,287,867	19,330,849
Concentration risk, percentage	10.00%	8.60%
Customer Concentration Risk [Member] | Revenues [Member] | Direct Customer F [Member]
Concentration Risk [Line Items]
Revenues	34,946,900
Concentration risk, percentage	15.70%
Customer Concentration Risk [Member] | Revenues [Member] | Major Distributors Aggregate [Member]
Concentration Risk [Line Items]
Revenues	$173,922,837	$153,997,554
Concentration risk, percentage	78.30%	6890.00%
Equipment Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	99.80%	72.40%
Equipment Supplier Concentration Risk [Member] | Majority Owner of Equipment Distributor [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	47.30%	72.40%
Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	73.80%	79.20%

Basis_of_presentation_signific4

Basis of presentation, significant concentrations and risks (Cash Concentration) (Details)

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

USD ($)

USD ($)

RMB denominated bank deposits with financial institutions in the PRC [Member]

RMB denominated bank deposits with financial institutions in the PRC [Member]

U.S. dollar denominated bank deposits with a financial institution in the U.S. [Member]

U.S. dollar denominated bank deposits with a financial institution in the U.S. [Member]

U.S. dollar denominated bank deposits with financial institutions in the PRC [Member]

U.S. dollar denominated bank deposits with financial institutions in the PRC [Member]

U.S. dollar denominated bank deposits with a financial institution in Hong Kong Special Administrative Region ("Hong Kong SAR") [Member]

U.S. dollar denominated bank deposits with a financial institution in Hong Kong Special Administrative Region ("Hong Kong SAR") [Member]

U.S. dollar denominated bank deposits with a financial institution in Hong Kong Special Administrative Region ("Hong Kong SAR") [Member]

Euro denominated bank deposits with a financial institution in Hong Kong SAR [Member]

Euro denominated bank deposits with a financial institution in Hong Kong SAR [Member]

U.S. dollar denominated bank deposits with Financial Institution in Dubai,United Arab Emirates ("UAE") [Member]

U.S. dollar denominated bank deposits with Financial Institution in Dubai,United Arab Emirates ("UAE") [Member]

U.S. dollar denominated bank deposits with Financial Institution in Macau Special Administrative Region ("Macau SAR") [Member]

U.S. dollar denominated bank deposits with Financial Institution in Macau Special Administrative Region ("Macau SAR") [Member]

Short-term bank deposits pledged as collateral for bills payable relating to purchase of raw materials [Member]

Short-term bank deposits pledged as collateral for bills payable relating to purchase of raw materials [Member]

Short-term bank deposits pledged as collateral for letter of credit relating to purchase of raw materials [Member]

Short-term bank deposits pledged as collateral for letter of credit relating to purchase of raw materials [Member]

Restricted Cash Deposits from Government Grant [Member]

Short-term bank deposits pledged as collateral for short-term bank borrowings [Member]

Short-term bank deposits pledged as collateral for short-term bank borrowings [Member]

Long-term bank borrowings pledged as collateral for issuance of letter of guarantee [Member]

Long-term bank borrowings pledged as collateral for issuance of letter of guarantee [Member]

HK dollar denominated bank deposits with Financial institution in Hong Kong SAR [Member]

HK dollar denominated bank deposits with Financial institution in Hong Kong SAR [Member]

Dirham Denominated Bank Deposits With Financial Institution in Dubai UAE [Member]

Dirham Denominated Bank Deposits With Financial Institution in Dubai UAE [Member]

MOP dollar denominated bank deposits with Financial Institution in Macau SAR [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

HKD

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

MOP

Restricted Cash and Cash Equivalents Items [Line Items]

Cash, cash equivalents, restricted cash and time deposits maintained at banks

$362,982,381

$311,377,750

$297,201

$770,704

$17,139

$17,139

$135,722

$1,366,224

$83,017

$988,698

$481,179

$140,179

$47,868

$7,855

$6,723

$135,606

$112,815

Restricted cash

28,829,206

12,545,772

6,383,219

11,868,855

676,917

17,722,212

22,445,987

17,722,212

17,728,782

Cash balance insured by the government authority

500,000

500,000

Accounts_receivable_Details

Accounts receivable (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Accounts receivable [Abstract]
Accounts receivable	$199,269,901	$204,108,050
Allowance for doubtful accounts	-109,871	-109,912
Accounts receivable, net	199,160,030	203,998,138
Notes receivable	539,810	921,907
Accounts receivable pledged as collateral for short-term bank loans	$32,916,916	$50,473,063

Inventories_Details

Inventories (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Inventories [Abstract]
Raw materials	$275,543,080	$241,853,814
Work in progress	248,592	207,181
Finished goods	23,126,112	7,736,249
Total inventories	$298,917,784	$249,797,244

Prepaid_expenses_and_other_cur2

Prepaid expenses and other current assets (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Prepaid expenses and other current assets [Abstract]
Advances to suppliers	$2,005,842	$168,614
Value added taxes receivables	5,248,906	6,407,547
Interest receivable	3,524,314	3,351,672
Others	4,883,208	1,325,995
Total prepaid expenses and other current assets	$15,662,270	$11,253,828

Property_plant_and_equipment_n2

Property, plant and equipment, net (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$388,025,439		$384,344,747
Less accumulated depreciation	-71,985,554		-66,020,147
Property, plant and equipment, net	316,039,885		318,324,600
Capitalized interest expense	168,306
Machinery, equipment and furniture [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	214,584,089		209,509,700
Motor vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	1,854,364		1,854,985
Workshops and buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	79,275,270		79,009,346
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$92,311,716		$93,970,716

Property_plant_and_equipment_n3

Property, plant and equipment, net (Allocated Depreciation Expense) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Property, Plant and Equipment [Line Items]
Depreciation expenses	$5,950,435	$5,604,945
Cost of revenues [Member]
Property, Plant and Equipment [Line Items]
Depreciation expenses	4,779,588	4,870,655
General and administration expenses [Member]
Property, Plant and Equipment [Line Items]
Depreciation expenses	375,128	302,281
Research and development expenses [Member]
Property, Plant and Equipment [Line Items]
Depreciation expenses	$795,719	$432,009

Prepayments_to_equipment_suppl1

Prepayments to equipment suppliers (Details)

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2015

Mar. 31, 2015

Dec. 31, 2014

Dec. 31, 2014

Mar. 31, 2015

Jan. 31, 2015

USD ($)

USD ($)

Equipment [Member]

Equipment [Member]

Xinda Holdings HK [Member]

Xinda Holdings HK [Member]

Xinda Holdings HK [Member]

Xinda Holdings HK [Member]

Harbin Jiamu Import & Export Trading Co., Ltd [Member]

Harbin Jiamu Import & Export Trading Co., Ltd [Member]

Harbin Jiamu Import & Export Trading Co., Ltd [Member]

Harbin Jiamu Import & Export Trading Co., Ltd [Member]

Harbin Jiamu Import & Export Trading Co., Ltd [Member]

Harbin Jiamu Import & Export Trading Co., Ltd [Member]

Peaceful Treasure Limited [Member]

Peaceful Treasure Limited [Member]

USD ($)

CNY

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Working Capital [Member]

Working Capital [Member]

Equipment [Member]

Equipment [Member]

Equipment [Member]

Equipment [Member]

Equipment [Member]

Equipment [Member]

Equipment [Member]

Equipment [Member]

USD ($)

CNY

USD ($)

CNY

USD ($)

CNY

USD ($)

CNY

USD ($)

CNY

USD ($)

USD ($)

item

Long-term deposits for equipment purchase [Line Items]

Commitments

$55,400,000

343,800,000

$290,100,000

1,800,000,000

$96,700,000

600,000,000

$262,600,000

1,629,300,000

$227,800,000

$271,200,000

Prepayments to equipment and construction suppliers

$266,678,237

$182,259,578

$221,600,000

1,375,200,000

$182,300,000

1,130,900,000

$43,400,000

Number of product line purchases under contract

70

70

Fair_value_measurement_Details

Fair value measurement (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Fair value measurement [Abstract]
Notes payable	$148,682,290	$148,617,057
Estimated fair value of notes payable	$142,782,000

Borrowings_Schedule_of_ShortTe

Borrowings (Schedule of Short-Term Loans, Including Current Portion of Long-Term Bank Loans) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Short-term Debt [Line Items]
Short-term bank loans, including current portion of long-term bank loans	$161,005,484	$99,735,422
Unsecured loans [Member]
Short-term Debt [Line Items]
Short-term bank loans, including current portion of long-term bank loans	63,316,631	47,223,028
Secured loans by accounts receivable [Member]
Short-term Debt [Line Items]
Short-term bank loans, including current portion of long-term bank loans	26,261,097	40,292,686
Guaranteed loans by a third-party [Member]
Short-term Debt [Line Items]
Short-term bank loans, including current portion of long-term bank loans	38,666,645
Secured loans by restricted cash [Member]
Short-term Debt [Line Items]
Short-term bank loans, including current portion of long-term bank loans	28,600,000
Current portion of long-term loan [Member]
Short-term Debt [Line Items]
Short-term bank loans, including current portion of long-term bank loans	$4,161,111	$12,219,708

Borrowings_Current_Narrative_D

Borrowings (Current) (Narrative) (Details)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015
In Millions, unless otherwise specified			London Interbank Offered Rate (LIBOR) [Member]	Guaranteed loans by a third-party [Member]	Guaranteed loans by a third-party [Member]	Guaranteed loans by a third-party [Member]	Guaranteed loans by a third-party [Member]	Secured loans by restricted cash [Member]	Secured loans by restricted cash [Member]	Secured loans by restricted cash [Member]	Secured loans by restricted cash [Member]
				Bank Loan One [Member]	Bank Loan One [Member]	Bank Loan Two [Member]	Bank Loan Two [Member]	USD ($)	CNY	Bank Loan Three [Member]	Bank Loan Four [Member]
				USD ($)	CNY	USD ($)	CNY			USD ($)	USD ($)
Short-term Debt [Line Items]
Weighted average interest rate	5.00%	5.70%
Debt instrument, issuer				Bank of Communications	Bank of Communications	Bank of Construction	Bank of Construction			HSBC Bank Middle East Limited in Dubai	HSBC Bank Middle East Limited in Dubai
Debt instrument, face amount				$22.60	140	$16.10	100			$12	$16.60
Debt instrument, payment description				Sichuan and will be paid off in five installments. The last installment will become due and payable on November 30, 2015.	Sichuan and will be paid off in five installments. The last installment will become due and payable on November 30, 2015.	Sichuan and will be paid off in five installments. The last installment will become due and payable on November 30, 2015.	Sichuan and will be paid off in five installments. The last installment will become due and payable on November 30, 2015.
Debt instrument, guarantor				an investment company affiliated with the Peoplebs Government of Shunqing District, Nanchong City, Sichuan Province	an investment company affiliated with the Peoplebs Government of Shunqing District, Nanchong City, Sichuan Province	an investment company affiliated with the Peoplebs Government of Shunqing District, Nanchong City, Sichuan Province	an investment company affiliated with the Peoplebs Government of Shunqing District, Nanchong City, Sichuan Province	HSBC bank in Harbin, China	HSBC bank in Harbin, China
Debt instrument, collateral amount								$6.30	39.3
Debt instrument, term of loan										350 days	351 days
Variable rate basis										LIBOR	LIBOR
Debt instrument, interest rate			0.27%	5.32%	5.32%	5.32%	5.32%
Variable rate spread										1.80%	1.80%
Debt instrument, issuance date				11-Feb-15	11-Feb-15	11-Feb-15	11-Feb-15			15-Jan-15	2-Feb-15

Borrowings_Schedule_of_LongTer

Borrowings (Schedule of Long-Term Bank Loans Excluding Current Portion) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long-term bank loans, excluding current portion	$205,538,523	$174,274,446
Secured Loans [Member]
Debt Instrument [Line Items]
Long-term bank loans, excluding current portion	70,000,000	70,000,000
Unsecured loans [Member]
Debt Instrument [Line Items]
Long-term bank loans, excluding current portion	139,699,634	116,494,154
Current Portion [Member]
Debt Instrument [Line Items]
Long-term bank loans, excluding current portion	$4,161,111	$12,219,708

Borrowings_Noncurrent_Narrativ

Borrowings (Non-current) (Narrative) (Details)

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

In Millions, unless otherwise specified

USD ($)

CNY

London Interbank Offered Rate (LIBOR) [Member]

Line of credit with remaining terms less than 12 months [Member]

Line of credit with remaining terms less than 12 months [Member]

Line of credit with remaining terms beyond 12 months [Member]

Line of credit with remaining terms beyond 12 months [Member]

Fifteen Month Unsecured Loan One [Member]

Fifteen Month Unsecured Loan One [Member]

Fifteen Month Unsecured Loan Two [Member]

Fifteen Month Unsecured Loan Two [Member]

Two Year Unsecured Loan [Member]

Two Year Unsecured Loan [Member]

One And Half Year Unsecured Loan [Member]

USD ($)

CNY

USD ($)

CNY

USD ($)

CNY

USD ($)

CNY

USD ($)

CNY

USD ($)

Debt Instrument [Line Items]

Debt instrument, issuer

Bank of Heilongjiang

Bank of Heilongjiang

Bank of Heilongjiang

Bank of Heilongjiang

Agriculture Bank of China

Agriculture Bank of China

Bank of China

Debt instrument, term of loan

15 months

15 months

15 months

15 months

2 years

2 years

1 year 6 months

Debt instrument, face amount

$8.10

50

$8.10

50

$16.10

100

$15.20

Debt instrument, issuance date

31-Mar-14

31-Mar-14

30-Apr-14

30-Apr-14

23-Jan-15

23-Jan-15

27-Jan-15

Debt instrument, maturity date

31-Mar-15

31-Mar-15

31-Mar-15

31-Mar-15

Debt instrument, interest rate

0.27%

6.15%

6.15%

6.15%

6.15%

6.00%

6.00%

Variable rate spread

1.50%

Variable rate basis

LIBOR

Total lines of credit

441.3

2,739.30

Unusued lines of credit

$72

446.8

$41.50

257.4

Accrued_expenses_and_other_cur2

Accrued expenses and other current liabilities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Accrued expenses and other current liabilities [Abstract]
Payables for purchase of property, plant and equipment	$7,131,095	$7,234,607
Accrued freight expenses	2,589,545	1,688,431
Accrued interest expenses	5,154,385	9,031,741
Others	7,406,174	6,529,804
Total accrued expenses and other current liabilities	$22,281,199	$24,484,583

Related_party_transactions_Sch

Related party transactions (Schedule of Significant Related Party Transactions) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Related party transactions [Abstract]
Rental expenses for plant and office spaces	$195,213	$199,911

Related_party_transactions_Sch1

Related party transactions (Schedule of Amounts Due From Related Parties) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Prepaid rent expenses to related party	$27,705	$220,262
Xinda High-Tech [Member]
Related Party Transaction [Line Items]
Prepaid rent expenses to related party	$27,705	$220,262

Related_party_transactions_Sch2

Related party transactions (Schedule of Plant and Office Buildings in Harbin) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
	sqm
Office Building 1 [Member]
Related Party Transaction [Line Items]
Annual Rental Fee	$764,850
Area (Square Meters)	23,894
Lease start date	1-Jan-14
Lease expiration period	31-Dec-18
Facility 1 [Member] | Mr. Han's son [Member]
Related Party Transaction [Line Items]
Annual Rental Fee	16,005
Area (Square Meters)	3,134
Lease start date	1-Jan-14
Lease expiration period	31-Dec-14
Facility 2 [Member] | Mr. Han's son [Member]
Related Party Transaction [Line Items]
Annual Rental Fee	$6,402
Area (Square Meters)	200
Lease start date	17-Aug-14
Lease expiration period	16-Aug-15

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Tax [Line Items]
Effective income tax rate	14.30%	24.70%
PRC statutory income tax rate	25.00%
Unrecognized tax benefits	$15,251,469
Interest relating to unrecognized tax benefits	$1,628,687
Sichuan Xinda [Member]
Income Tax [Line Items]
PRC statutory income tax rate	15.00%

Deferred_Income_Details

Deferred Income (Details) (Interest-Free Loan [Member])	0 Months Ended
In Millions, unless otherwise specified	Jan. 26, 2015	Jan. 26, 2015
	USD ($)	CNY
Debt Instrument [Line Items]
Debt instrument, issuer	Sichuan Province	Sichuan Province
Debt instrument, face amount	$17.70	110
Debt instrument, issuance date	26-Jan-15	26-Jan-15

Stockholders_equity_Details

Stockholders' equity (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Stockholders Equity [Line Items]
Balance as of January 1, 2015	$525,387,616
Net income	25,404,026	21,996,051
Other comprehensive loss	-164,760
Stock based compensation	255,726
Vesting of nonvested shares
Balance as of March 31, 2015	550,882,608
Series B Preferred Stock [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2015	100
Balance as of January 1, 2015, shares	1,000,000
Net income
Other comprehensive loss
Stock based compensation
Vesting of nonvested shares
Vesting of nonvested shares, shares
Balance as of March 31, 2015	100
Balance as of March 31, 2015, shares	1,000,000
Common Stock [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2015	4,916
Balance as of January 1, 2015, shares	49,151,796
Net income
Other comprehensive loss
Stock based compensation
Vesting of nonvested shares	1
Vesting of nonvested shares, shares	9,488
Balance as of March 31, 2015	4,917
Balance as of March 31, 2015, shares	49,161,284
Treasury Stock [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2015	-92,694
Net income
Other comprehensive loss
Stock based compensation
Vesting of nonvested shares
Balance as of March 31, 2015	-92,694
Additional Paid-in Capital [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2015	80,875,787
Net income
Other comprehensive loss
Stock based compensation	255,726
Vesting of nonvested shares	-1
Balance as of March 31, 2015	81,131,512
Retained Earnings [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2015	431,823,706
Net income	25,404,026
Other comprehensive loss
Stock based compensation
Vesting of nonvested shares
Balance as of March 31, 2015	457,227,732
Accumulated Other Comprehensive Income [Member]
Stockholders Equity [Line Items]
Balance as of January 1, 2015	12,775,801
Net income
Other comprehensive loss	-164,760
Stock based compensation
Vesting of nonvested shares
Balance as of March 31, 2015	$12,611,041

Stock_based_compensation_Narra

Stock based compensation (Narrative) (Details) (Nonvested Shares [Member], USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$1,545,184
Unrecognized compensation cost, recognition period	1 year 5 months 1 day
General and administrative expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$255,726	$410,848

Stock_based_compensation_Summa

Stock based compensation (Summary of Nonvested Shares Activity) (Details) (Nonvested Shares [Member], USD $)	3 Months Ended
	Mar. 31, 2015
Nonvested Shares [Member]
Number of Nonvested Shares
Balance as of December 31, 2014	647,288
Vested	-9,488
Forfeited	-2,000
Outstanding as of March 31, 2015	635,800
Weighted Average Grant Date Fair Value Per Share
Balance as of December 31, 2014	$5
Vested	$4.15
Forfeited	$4.77
Outstanding as of March 31, 2015	$5.01

Earnings_per_share_Calculation

Earnings per share (Calculation of Basic and Diluted Earnings Per Share) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Numerator:
Net income	$25,404,026	$21,996,051
Net income for basic and dilutive earnings per share	18,979,373	16,348,800
Denominator:
Denominator for basic and diluted earnings per share	49,157,383	48,272,165
Earnings per share:
Basic and diluted	$0.39	$0.34
Series D Convertible Preferred Stock [Member]
Numerator:
Less: Earnings allocated to participating Series D convertible preferred stock and nonvested shares	-6,177,505	-5,418,875
Nonvested Shares [Member]
Numerator:
Less: Earnings allocated to participating Series D convertible preferred stock and nonvested shares	($247,148)	($228,376)

Earnings_per_share_Summary_of_

Earnings per share (Summary of Potentially Dilutive Securities) (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Series D Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable upon exercise	16,000,000	16,000,000
Series A Investors Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable upon exercise		1,320,696
Series A Placement Agents Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable upon exercise		117,261

Commitments_and_contingencies_1

Commitments and contingencies (Narrative) (Details)

1 Months Ended

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2015

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2015

Jan. 31, 2015

Mar. 31, 2015

Jan. 31, 2015

Jan. 31, 2015

Equipment [Member]

Equipment [Member]

Facility Construction [Member]

Facility Construction [Member]

Xinda Holdings HK [Member]

Xinda Holdings HK [Member]

Xinda Holdings HK [Member]

Xinda Holdings HK [Member]

Peaceful Treasure Limited [Member]

Peaceful Treasure Limited [Member]

Zettachem International Limited [Member]

Zettachem International Limited [Member]

Zettachem International Limited [Member]

USD ($)

CNY

USD ($)

CNY

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Working Capital [Member]

Working Capital [Member]

Equipment [Member]

Equipment [Member]

Facility [Member]

Facility [Member]

Facility [Member]

USD ($)

CNY

USD ($)

CNY

USD ($)

USD ($)

USD ($)

USD ($)

AED

Long-term Purchase Commitment [Line Items]

Commitments

$55,400,000

343,800,000

$36,300,000

225,500,000

$290,100,000

1,800,000,000

$96,700,000

600,000,000

$227,800,000

$271,200,000

$700,000

$3,400,000

12,500,000

Commitments_and_contingencies_2

Commitments and contingencies (Schedule of Future Minimum Rental Payments) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Commitments and contingencies [Abstract]
Period from April 1, 2015 to December 31, 2015	$970,649
2016	1,084,140
2017	944,076
2018	875,410
2019	112,896
2020 and thereafter	1,147,776
Operating lease rental expense, plant, equipment and office spaces	$229,149	$318,228