Organization and Business Background (Details 1) - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Current Assets
Cash and bank balances	$ 2,625,059	$ 12,117,425	$ 4,716,073	$ 9,017,427
Restricted cash		3,642,616
Accounts receivable	2,409,458	2,876,632
Inventories	4,156,848	2,923,516
Prepayments and other current assets	6,213,819	6,241,299
Total current assets	15,405,184	24,158,872
Property, plant, and equipment, net	167,245,378	167,829,716
Deferred tax asset non-current	9,081,933	8,277,091
Total Assets	194,557,304	203,076,010
Current Liabilities
Short-term bank loans	6,683,003	11,802,075
Accounts payable	1,647,286	629,054
Notes payable		3,642,616
Due to related parties	513,423	413,336
Accrued payroll and employee benefits	305,148	213,536
Other payables and accrued liabilities	8,723,322	10,222,796
Income taxes payable		219,305
Total current liabilities	20,411,723	29,634,267
Loans from credit union	4,796,911	4,706,259
Loans from a related party	2,227,668	2,185,569
Total liabilities	27,436,302	36,526,095
Dongfang Paper [Member]
Current Assets
Cash and bank balances	2,524,546	8,328,980
Restricted cash		3,642,616
Accounts receivable	2,409,458	2,876,632
Inventories	4,138,999	2,906,004
Prepayments and other current assets	6,193,652	6,219,395
Total current assets	15,266,655	23,973,627
Property, plant, and equipment, net	152,851,255	153,302,061
Deferred tax asset non-current	7,460,699	6,711,412
Total Assets	175,578,609	183,987,100
Current Liabilities
Short-term bank loans	6,683,003	11,802,075
Current portion of long-term loans from credit union	193,065	189,416
Accounts payable	1,647,286	629,054
Notes payable		3,642,616
Due to related parties	244,230	203,188
Accrued payroll and employee benefits	300,510	208,660
Other payables and accrued liabilities	8,723,294	10,222,766
Income taxes payable		219,305
Total current liabilities	17,791,388	27,117,080
Loans from credit union	4,796,911	4,706,259
Loans from a related party	2,227,668	2,185,569
Total liabilities	$ 24,815,967	$ 34,008,908

The amount of current portion of long-term loans from credit union.

No definition available.

Name:	itp_CurrentPortionOfLongTermLoansFromCreditUnion
Namespace Prefix:	itp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).